Dimir Control is a Historic 60-card main deck with a 15-card sideboard, registered as a blue-black control deck whose runtime role is to trade early, constrain the opponent’s highest-impact turns, and convert small card-advantage permanents into a protected endgame. The active validation contract reports 60 main-deck cards and 15 sideboard cards, so the registration is count-legal for Historic under the supplied rule of at least 60 main and at most 15 sideboard.
- Format status: Historic is the active format for this guide, and all strategy instructions must defer to Veles legal actions, visible board state, public zones, and the rules engine’s current prompts before applying matchup heuristics.
- Archetype tags: The current tags are control and control, which should be interpreted as a primary control deck with tempo-midrange pressure available from Psychic Frog, Quantum Riddler, Kaito, Bane of Nightmares, Tasigur, the Golden Fang, and creature combat when the opponent is already constrained.
- Stock/rogue/hybrid status: Treat this list as a hybrid Dimir control shell rather than a pure stock archetype, because the interaction core of Thoughtseize, Fatal Push, Counterspell, Spell Snare, Drown in the Loch, Dismember, Force of Negation, Sink into Stupor, and Cling to Dust is familiar control infrastructure, while the threat and value suite of Tamiyo, Inquisitive Student, Psychic Frog, Quantum Riddler, Kaito, Bane of Nightmares, Tasigur, the Golden Fang, Baleful Strix, and Snapcaster Mage creates deck-specific sequencing priorities.
- Legality status: The provided format-aware validation result passes, but individual card legality and exact card text should still be treated as engine-owned at runtime; when Forge or the active rules adapter does not expose a legal action, the pilot must not infer that a play exists.
- Mana status: The registered mana base is blue-black with 2 Island, 2 Swamp, 4 Watery Grave, 4 Darkslick Shores, 4 Prismatic Vista, 1 Otawara, Soaring City, and 2 Gloomlake Verge, so opening hands should be checked for early black for Thoughtseize and Fatal Push, early blue for Spell Snare and Counterspell, and enough untapped access to avoid missing interaction windows.
- Role concern: The deck is not a tap-out control deck by default; it should normally spend mana on the opponent’s turn when holding Counterspell, Drown in the Loch, Dismember, Force of Negation, Sink into Stupor, Cling to Dust, or a flashed-back spell via Snapcaster Mage, unless the visible board or hand pressure makes proactive development more urgent.
- Threat concern: The deck wins by accumulating advantage and pressure after disruption, so Psychic Frog, Quantum Riddler, Kaito, Bane of Nightmares, Tasigur, the Golden Fang, Tamiyo, Inquisitive Student, Baleful Strix, and Snapcaster Mage should be evaluated as engines or stabilizers before they are treated as expendable bodies.
- Sideboard status: The sideboard contains 2 Consign to Memory, 2 Stern Scolding, 2 Surgical Extraction, 3 Damping Sphere, 2 Harbinger of the Seas, 2 Mystical Dispute, and 2 Toxic Deluge, giving the deck configurable tools for stack fights, small-creature pressure, graveyard or combo follow-up, mana-engine pressure, nonbasic-heavy battlefields, blue mirrors, and wide creature boards.
- Opponent information status: No specific opponent decklist, matchup queue, or metagame target is supplied in this batch, so matchup-specific decisions must begin from public information only: revealed cards, companion or pregame data if any, battlefield development, graveyard contents, exile, stack objects, life totals, mana sources, and previous logged actions.
- Runtime priority: Use this guide as a strategy layer, not as a legality oracle; if the engine shows only pass, mana, attack, block, target, mode, payment, or selection actions that conflict with a heuristic here, choose from the visible legal actions and preserve hidden-information discipline.
Dimir Control assembles cheap discard, efficient removal, hard permission, and compact card-advantage threats into a game where the opponent’s first meaningful plan is interrupted and the second plan is answered while a small engine keeps pulling ahead. The deck wins by turning exchanges from Thoughtseize, Fatal Push, Spell Snare, Counterspell, Drown in the Loch, Dismember, Force of Negation, and Sink into Stupor into protected pressure from Psychic Frog, Quantum Riddler, Kaito, Bane of Nightmares, Tasigur, the Golden Fang, Tamiyo, Inquisitive Student, Snapcaster Mage, and Baleful Strix.
Prioritize survival and information before pressure unless the opponent is visibly stumbling or a resolved threat can be protected with open mana. Thoughtseize should shape the first turns by taking the card that either beats current interaction or forces the deck to tap low at a bad time; after that, permission and removal should be spent to keep the battlefield small, keep the stack manageable, and preserve a window for Psychic Frog, Quantum Riddler, or Kaito, Bane of Nightmares to generate repeated advantage.
Win by converting one-for-one trades into a board state where every draw step matters less for the opponent than for Dimir Control. Psychic Frog and Quantum Riddler are the main recurring pressure points, Kaito, Bane of Nightmares is a higher-commitment payoff that should be deployed when the opponent cannot cleanly punish the tap-out, Tasigur, the Golden Fang is a late stabilizer and mana-efficient threat, and Snapcaster Mage turns the graveyard into a second hand when the visible exchange pattern rewards a specific spell.
Do not pilot this as pure draw-go, pure tempo, or a fast creature deck. The list has enough threats to close, but it is not trying to flood the battlefield; it has enough permission to play at instant speed, but it cannot counter everything forever; it has graveyard leverage, but it is not a graveyard combo deck. The default posture is selective control: answer what matters, pass with mana when the opponent’s turn is dangerous, and commit a threat when the visible state says the next exchange favors the deck.
Card text check required for Quantum Riddler, Kaito, Bane of Nightmares, Tamiyo, Inquisitive Student, and Gloomlake Verge before using any exact-text tactic not exposed by the rules engine. Treat their guide roles as strategic labels only unless Veles shows the legal action, target, cost, mode, or triggered choice.
- Threats: Psychic Frog, Quantum Riddler, Kaito, Bane of Nightmares, Tasigur, the Golden Fang, Tamiyo, Inquisitive Student, Snapcaster Mage, and Baleful Strix are the cards that eventually end the game or hold the battlefield while interaction trades down the opponent’s options.
- Payoffs: Kaito, Bane of Nightmares, Quantum Riddler, Psychic Frog, and Tasigur, the Golden Fang reward the deck for reaching a low-resource game, so protect them when they are the only active advantage source and trade them when the exchange buys a decisive tempo or survival swing.
- Engines: Psychic Frog, Quantum Riddler, Tamiyo, Inquisitive Student, Baleful Strix, Cling to Dust, Snapcaster Mage, and Kaito, Bane of Nightmares should be treated as repeatable or recursive advantage sources when the engine exposes legal draws, attacks, casts, activations, or graveyard lines.
- Velocity: Thoughtseize provides information velocity, Baleful Strix and Cling to Dust help convert time into cards or life where legal, Snapcaster Mage rebuy choices increase spell density, and Sink into Stupor can function as interaction or mana smoothing only when the legal action text supports that use.
- Interaction: Fatal Push, Spell Snare, Counterspell, Drown in the Loch, Dismember, Force of Negation, Sink into Stupor, Thoughtseize, and Snapcaster Mage are the main control package; spend the narrow answers first when they line up cleanly, preserve Counterspell or Force of Negation for high-impact stack turns, and use Dismember with life-total awareness.
- Protection: Counterspell, Force of Negation, Spell Snare, Drown in the Loch, Thoughtseize, and sometimes Sink into Stupor protect a resolved engine by preventing the opponent’s clean answer or punishing a tap-out recovery turn.
- Recursion: Snapcaster Mage and Cling to Dust are the registered recursion or graveyard-use tools, with Tasigur, the Golden Fang also using the graveyard if the rules engine exposes that line; avoid spending graveyard resources casually when a later Snapcaster Mage, Cling to Dust, Drown in the Loch, or Tasigur, the Golden Fang line depends on them.
- Mana: Island, Swamp, Watery Grave, Darkslick Shores, Prismatic Vista, Otawara, Soaring City, and Gloomlake Verge must support early black for Thoughtseize and Fatal Push, early blue for Spell Snare and Counterspell, and double-blue stability before choosing lines that pass with permission.
- Sideboard modules: Consign to Memory, Stern Scolding, Surgical Extraction, Damping Sphere, Harbinger of the Seas, Mystical Dispute, and Toxic Deluge are role-specific tools rather than generic upgrades; they should be mapped to visible opponent plans before reducing main-deck interaction that still answers the battlefield or stack.
- Protect a cheap threat after trading resources: Psychic Frog is the preferred early win path when the opponent has few visible blockers, few cards after Thoughtseize, or must spend mana into Counterspell, Spell Snare, Drown in the Loch, Force of Negation, Fatal Push, Dismember, or Sink into Stupor. Set up by answering the first relevant creature or stack play, then attack while leaving mana for the visible legal interaction that covers the opponent’s cleanest recovery.
- Convert Quantum Riddler into pressure plus advantage only through legal engine prompts. Card text check required for Quantum Riddler, so treat it as a major threat/engine without assuming exact triggers; prioritize it when the battlefield is stable, the opponent is low on immediate pressure, and Dimir Control can protect the first turn cycle with open blue mana or prior Thoughtseize information.
- Use Kaito, Bane of Nightmares as a higher-commitment closing engine when tapping low is unlikely to lose the game. Card text check required for Kaito, Bane of Nightmares, so follow engine-exposed loyalty, attack, token, draw, or other legal actions rather than assumed text; prioritize Kaito when removal has reduced the battlefield, the opponent’s haste or burn pressure is low, and a planeswalker-style permanent is harder for them to answer than a creature.
- Finish low-resource games with Tasigur, the Golden Fang when the graveyard can support the legal cast without weakening a more important Snapcaster Mage, Cling to Dust, or Drown in the Loch line. Prioritize Tasigur when mana efficiency matters, when a large single threat blocks and attacks better than another small creature, or when the opponent has already spent exile or destroy effects.
- Win by making every exchange protect the active clock. Once Psychic Frog, Quantum Riddler, Kaito, Bane of Nightmares, Tasigur, the Golden Fang, Tamiyo, Inquisitive Student, Snapcaster Mage, or Baleful Strix is already pressuring, prefer interaction that preserves that permanent and denies the opponent’s stabilizer over adding a second vulnerable threat.
- Accumulate incremental combat damage from Baleful Strix, Snapcaster Mage, Tamiyo, Inquisitive Student, and creature remnants when the opponent is empty or constrained. Do not overvalue the speed of this line; use it when passing with Counterspell, Drown in the Loch, Force of Negation, Spell Snare, Fatal Push, or Dismember is stronger than committing another threat.
- Rebuy the best spent spell with Snapcaster Mage when the visible game asks for a specific answer or a final push. Snapcaster Mage should become removal, discard, permission, or pressure depending on legal graveyard targets; avoid using it for low-impact value if a later Counterspell, Fatal Push, Thoughtseize, Drown in the Loch, Cling to Dust, or Dismember flashback would answer a known problem.
- Use Cling to Dust as a stabilizing value line when life, cards, or graveyard control matter and the engine exposes the relevant legal target. Do not exile graveyard resources blindly; check whether Tasigur, the Golden Fang, Drown in the Loch, Snapcaster Mage, or another Cling to Dust line needs those cards more than the immediate gain.
- Let Thoughtseize become a win condition by clearing the answer to a threat, not by taking the most expensive card automatically. When a threat is ready or already resolved, prioritize the opponent card that beats the current board, invalidates available interaction, or forces Dimir Control to tap out on the wrong turn.
- Use Otawara, Soaring City and Sink into Stupor as tempo-closing tools only when legal action text supports the bounce or spell mode. These lines are secondary closers because they convert a protected attack or planeswalker turn into lethal tempo, not because they replace removal or permission as the main plan.
- When behind on life, stop racing unless the legal attack is immediately lethal or forces survival-positive blocks. Preserve Dismember life payments carefully, use Fatal Push and Drown in the Loch on damage sources before speculative value targets, and prefer Baleful Strix, Tasigur, the Golden Fang, or removal-backed pass lines that reduce incoming damage.
- When behind on board, trade down first and win later. Use Fatal Push, Dismember, Drown in the Loch, Sink into Stupor, Counterspell, and Force of Negation to shrink the battlefield before committing Kaito, Bane of Nightmares or Quantum Riddler; if Toxic Deluge is available after sideboarding, treat it as a reset tool but respect life total and legal engine prompts.
- When behind on cards, protect the card-advantage permanent or recursion line instead of spending interaction on low-impact plays. Prioritize Quantum Riddler, Kaito, Bane of Nightmares, Cling to Dust, Snapcaster Mage, Baleful Strix, and Tamiyo, Inquisitive Student only when their legal actions can survive long enough to recover material.
- When behind on mana, choose one-spell turns that answer the highest-impact visible threat and keep future colors functional. Prismatic Vista should fix the missing basic when legal, Darkslick Shores and Watery Grave should support early black and blue, and Sink into Stupor should be treated as mana only when the engine offers that land-mode line and interaction is not urgently needed.
- When engines are removed, pivot to draw-go pressure rather than forcing replacement threats into open mana. A lone Snapcaster Mage, Baleful Strix, Tamiyo, Inquisitive Student, Psychic Frog, or Tasigur, the Golden Fang can still close after Thoughtseize and permission exhaust the opponent.
- When graveyard recursion is attacked, spend graveyard-dependent cards before they are blanked only if the legal action has immediate value. Otherwise, win with hard-cast threats, topdecked interaction, and clean combat rather than overcommitting to Snapcaster Mage, Cling to Dust, Drown in the Loch, or Tasigur, the Golden Fang.
- When facing visible combo pressure, abandon slow value and hold stack interaction. Thoughtseize should take the enabling or protective piece shown by information, Counterspell and Force of Negation should cover the decisive spell, and pressure should be added only after the next dangerous stack window is covered.
- Life is a spendable resource only while the board and stack are under control. Thoughtseize, Watery Grave, Dismember, and Toxic Deluge can all trade life for tempo or certainty, but stop paying life aggressively when visible attackers, burn, haste, or repeated combat pressure make the next two turns survival-sensitive.
- Hand size is Dimir Control's main strategic reserve. Convert spare cards into precision answers through Thoughtseize, Counterspell, Fatal Push, Drown in the Loch, Force of Negation, and Dismember; convert redundant or low-timing cards into alternate costs only when the protected line matters more than future flexibility.
- Mana is the bottleneck that determines whether the deck can answer and advance in the same turn. One-mana spells buy time, two-mana permission protects the midgame, and four-plus-mana turns should either double-spell or deploy Quantum Riddler, Kaito, Bane of Nightmares, Tasigur, the Golden Fang, or Snapcaster Mage with protection.
- Board presence is valuable because it turns answers into a clock. Psychic Frog, Baleful Strix, Tamiyo, Inquisitive Student, Snapcaster Mage, Quantum Riddler, Tasigur, the Golden Fang, and Kaito, Bane of Nightmares should pressure only after the opponent's cleanest visible punish is covered or already stripped.
- Graveyard cards are shared fuel, not free clutter. Preserve useful spells for Snapcaster Mage, card count and spell density for Drown in the Loch, escape targets for Cling to Dust, and delve fuel for Tasigur, the Golden Fang; spend the graveyard when the immediate legal action prevents damage, wins a stack fight, or creates a durable threat.
- Exile is a cost and a denial zone. Force of Negation may require exiling a blue card, Cling to Dust can exile graveyard cards, Surgical Extraction after sideboarding can convert one public card into broad future denial, and Tasigur, the Golden Fang can consume graveyard resources; choose exile targets with the next likely graveyard-dependent line in mind.
- Lands are interaction infrastructure before they are excess resources. Darkslick Shores, Watery Grave, Prismatic Vista, Island, Swamp, Gloomlake Verge, Otawara, Soaring City, and Sink into Stupor should first secure black on turn one and double blue by Counterspell turns, then support utility or spell-mode decisions.
- Sacrifice fodder is not a core resource in this registered deck. Do not treat Baleful Strix, Snapcaster Mage, Tamiyo, Inquisitive Student, Psychic Frog, or other permanents as expendable unless the rules engine presents a legal sacrifice prompt from an opponent effect, sideboard card, or copied game object; if forced, sacrifice the permanent whose future role is least relevant to visible survival and pressure.
- Tempo is created by trading one mana or two mana for the opponent's key turn. Fatal Push, Spell Snare, Stern Scolding, Dismember, Force of Negation, Sink into Stupor, Otawara, Soaring City, and Consign to Memory should be used to prevent snowball turns, protect a clock, or deny combo timing rather than to answer every low-impact spell.
- Information turns generic answers into exact answers. Thoughtseize, visible graveyards, public stack actions, revealed cards, and combat choices should decide whether to hold Counterspell, spend Fatal Push, deploy Psychic Frog, or tap out for Quantum Riddler or Kaito, Bane of Nightmares.
- Sideboard bullets convert narrow slots into matchup-specific leverage. Consign to Memory and Mystical Dispute improve stack exchanges, Stern Scolding and Toxic Deluge improve creature pressure, Surgical Extraction attacks graveyard or combo dependencies, Damping Sphere constrains burst mana or repeated spell turns, and Harbinger of the Seas pressures greedy mana only when its legal text and visible battlefield support that plan.
- Prioritize turn-one black or blue based on the hand's first legal action. Thoughtseize, Fatal Push, Cling to Dust, and Dismember push toward black access, while Tamiyo, Inquisitive Student, Spell Snare, Stern Scolding, Consign to Memory, and Mystical Dispute push toward blue access.
- Secure double blue before relying on Counterspell or Force of Negation. Hands with Counterspell but no path to two blue sources by turn two or three need another early play, a Prismatic Vista fixing line, or enough cheap black interaction to survive while developing mana.
- Keep Psychic Frog and Baleful Strix hands only when both colors are realistically available. Watery Grave, Darkslick Shores, Gloomlake Verge with its condition satisfied by visible rules output, or Prismatic Vista plus the missing basic can support these cards; do not assume uncertain color production without engine confirmation.
- Use Prismatic Vista to fix the missing color rather than thinning automatically. Fetch Island when Counterspell, Force of Negation, Tamiyo, Inquisitive Student, Snapcaster Mage, or Quantum Riddler timing is constrained; fetch Swamp when Thoughtseize, Fatal Push, Cling to Dust, Tasigur, the Golden Fang, Dismember, or Toxic Deluge timing is constrained.
- Sequence Darkslick Shores early when it is needed untapped. It is strongest before the fourth land; prefer playing it in the first three land drops unless another land is required to unlock black, blue, or double blue immediately.
- Sequence Watery Grave according to life pressure and interaction timing. Play it untapped when an immediate Thoughtseize, Fatal Push, Spell Snare, Counterspell setup, Psychic Frog, or Baleful Strix line matters; play it tapped when no same-turn mana is needed and life is already under pressure.
- Treat Otawara, Soaring City as a blue land until its utility action is worth more than mana stability. Do not hold it for bounce if missing land drops or double blue would prevent Counterspell, Force of Negation, Snapcaster Mage, Quantum Riddler, or Kaito, Bane of Nightmares turns.
- Treat Sink into Stupor as a spell unless the hand needs a land drop to function. Use the land-mode legal action when missing mana would strand interaction or threats; preserve the spell-mode legal action when bouncing a visible permanent or stack-adjacent problem creates a decisive tempo turn.
- Keep two-land hands with cheap interaction and both colors more often than slow hands with perfect late mana. A strong keep usually has at least two lands, access to black and blue by turn two, and one or more early plays among Thoughtseize, Fatal Push, Spell Snare, Cling to Dust, Tamiyo, Inquisitive Student, Baleful Strix, or Psychic Frog.
- Mulligan hands that cannot cast early spells or cannot reach their key colors. One-land hands need multiple one-mana plays plus a visible draw plan to be acceptable, and color-lopsided hands with Counterspell but no double blue or Thoughtseize/Fatal Push with no black are high-risk.
- Play land before draw when the drawn card cannot change the land decision and mana is needed for a known legal action. Play land after draw when holding Prismatic Vista, Sink into Stupor, Otawara, Soaring City, or a choice between tapped and untapped Watery Grave could be improved by seeing the card first.
- Preserve open mana once the deck has stabilized. Passing with Counterspell, Drown in the Loch, Force of Negation, Fatal Push, Dismember, Cling to Dust, or Snapcaster Mage lines is often stronger than tapping out for a threat unless the opponent is constrained by Thoughtseize information or visible mana limits.
- Strong keep: Two or three lands with both colors, one turn-one play, and one turn-two interaction spell is the baseline keep. Examples include `Watery Grave` plus `Darkslick Shores` with `Thoughtseize`, `Fatal Push`, `Counterspell`, and `Psychic Frog`, or `Prismatic Vista` plus `Island` with `Spell Snare`, `Baleful Strix`, and `Drown in the Loch`.
- Strong keep on the play: Prefer proactive information plus a protected clock. `Thoughtseize`, `Psychic Frog`, `Counterspell`, and stable lands is excellent because the first discard decision tells whether to deploy the threat or hold mana.
- Strong keep on the draw: Prefer cheap answers before tap-out cards. `Fatal Push`, `Spell Snare`, `Dismember`, `Baleful Strix`, and two-color mana is strong because it can catch up before `Quantum Riddler`, `Kaito, Bane of Nightmares`, or `Tasigur, the Golden Fang` becomes relevant.
- Medium keep: Two lands with only one color is acceptable only when the hand already casts multiple early spells and has a clear draw or stall plan. A blue-heavy hand with `Tamiyo, Inquisitive Student`, `Spell Snare`, `Counterspell`, and `Sink into Stupor` can keep if black cards are not needed immediately; a black-heavy hand with `Thoughtseize`, `Fatal Push`, `Cling to Dust`, and `Dismember` can keep if it buys time to find blue.
- Risky keep: One-land hands need a turn-one play, a cheap second play, and a known path to the missing land from draw steps. A single `Prismatic Vista` with `Thoughtseize`, `Fatal Push`, `Cling to Dust`, and `Spell Snare` is matchup-dependent; a single land with `Counterspell`, `Psychic Frog`, `Quantum Riddler`, and `Kaito, Bane of Nightmares` is too slow.
- Automatic ship: Zero-land hands, one-land hands with no one-mana spell, hands that cannot produce black or blue for their first two legal actions, and hands with only late tap-out cards plus reactive spells that cannot be cast should be mulliganed. Five-land hands without `Thoughtseize`, `Fatal Push`, `Spell Snare`, `Cling to Dust`, `Baleful Strix`, or `Psychic Frog` should also go back.
- Trap hand: Do not keep a hand because it contains several counters if it cannot affect the board before turn three. `Counterspell`, `Force of Negation`, `Drown in the Loch`, `Snapcaster Mage`, and slow mana can lose to creatures already on the battlefield.
- Trap hand: Do not keep a hand relying on `Drown in the Loch` before graveyards are stocked unless other interaction functions independently. It is stronger beside `Thoughtseize`, `Fatal Push`, `Cling to Dust`, combat trades, or public fetchlands than as the first answer.
- Matchup-dependent keep: Against fast creature pressure, prioritize `Fatal Push`, `Dismember`, `Baleful Strix`, `Psychic Frog`, and post-board `Stern Scolding` or `Toxic Deluge`; slow hands with only `Thoughtseize` and four-mana threats are dangerous. Against spell combo or big mana, prioritize `Thoughtseize`, `Counterspell`, `Force of Negation`, `Spell Snare`, and post-board `Damping Sphere`, `Mystical Dispute`, `Consign to Memory`, or `Surgical Extraction` when their legal text and visible matchup context matter.
- Card-text caution: Keep `Quantum Riddler`, `Kaito, Bane of Nightmares`, `Tamiyo, Inquisitive Student`, `Sink into Stupor`, and sideboard bullets for their visible legal actions at runtime. Card text check required before treating any one of them as a deterministic engine or matchup lock.
- Turn 1: Lead with `Thoughtseize` when the opponent's plan is unknown and black mana is available, especially on the play. Lead with `Fatal Push` only when the visible creature threatens immediate snowball pressure, lead with `Cling to Dust` only for a meaningful graveyard card or cantrip line, and lead with `Tamiyo, Inquisitive Student` when the hand already has interaction for the next turn.
- Turn 1 deviation: Hold `Thoughtseize` when life is under heavy visible pressure and the hand already has exact answers for the first turns. Fetch with `Prismatic Vista` for the color that unlocks the next two legal actions, not for deck thinning.
- Turn 2: Prefer `Counterspell`, `Spell Snare`, `Fatal Push`, `Drown in the Loch`, or `Dismember` when the opponent can make a decisive play. Deploy `Psychic Frog` or `Baleful Strix` when the stack is clear, the opponent is not representing a must-counter action, or the creature blocks while advancing cards.
- Turn 2 deviation: Cast `Thoughtseize` plus a one-mana answer instead of holding `Counterspell` when the discard can remove the only visible high-impact play. Do not expose `Psychic Frog` into a known answer if passing with interaction preserves the same clock later.
- Turn 3: Hold up `Counterspell`, `Drown in the Loch`, `Force of Negation`, `Sink into Stupor`, or removal when the opponent's third turn is likely decisive. Use `Snapcaster Mage` only when flashing back a specific visible graveyard spell changes the turn; otherwise preserve it for later flexibility.
- Turn 3 deviation: Tap out for `Quantum Riddler`, `Kaito, Bane of Nightmares`, or `Tasigur, the Golden Fang` only after `Thoughtseize` information, visible tapped mana, or exhausted resources makes the commitment safer. Card text check required before valuing `Quantum Riddler` or `Kaito, Bane of Nightmares` above holding interaction.
- Turns 4-5: Convert one-for-one trades into a protected advantage source. Attack with `Psychic Frog` when the combat line is legal and does not abandon required blocking, use `Cling to Dust` or `Snapcaster Mage` to turn graveyards into cards, and deploy `Kaito, Bane of Nightmares`, `Quantum Riddler`, or `Tasigur, the Golden Fang` with at least one answer available when possible.
- Turns 4-5 deviation: Spend `Force of Negation` or `Dismember` aggressively if the alternative is losing the board or letting a noncreature engine resolve. Preserve `Sink into Stupor` or `Otawara, Soaring City` for a tempo reset when bouncing the visible permanent or spell creates an immediate safe attack, protects a planeswalker, or prevents lethal pressure.
- Late game: Play at instant speed unless a threat must be committed to close. Chain `Counterspell`, `Drown in the Loch`, `Snapcaster Mage`, `Cling to Dust`, and graveyard-fueled `Tasigur, the Golden Fang` lines while avoiding graveyard overuse that strands later escape, delve, or flashback actions.
- Late-game deviation: When both players are low on resources, a legal `Psychic Frog`, `Baleful Strix`, `Tamiyo, Inquisitive Student`, `Quantum Riddler`, or `Kaito, Bane of Nightmares` may be worth resolving even without full protection. Choose the threat that best matches visible board pressure, available mana, known opposing cards, and current legal interaction.
-`Thoughtseize`: Use `Thoughtseize` as the cleanest early information tool and as a way to force through later threats. Prioritize taking the card that invalidates the next two turns: fast pressure when your hand is slow, a must-answer engine when your hand is removal-heavy, or interaction when planning `Psychic Frog`, `Quantum Riddler`, `Kaito, Bane of Nightmares`, or `Tasigur, the Golden Fang`. Do not spend it casually when life total is under visible pressure and the opponent's current battlefield already demands `Fatal Push`, `Dismember`, or `Toxic Deluge` post-board.
-`Fatal Push`: Treat `Fatal Push` as the default early creature answer and preserve it for threats that make combat or planeswalker defense impossible. Use `Prismatic Vista` and other visible sacrifice/revolt-enabling actions only when the rules engine exposes the legal line and the larger target matters. Do not waste `Fatal Push` on a low-impact creature if `Baleful Strix`, `Psychic Frog`, or life total can absorb the attack and a stronger creature is likely next.
-`Counterspell`: Use `Counterspell` to stop cards that beat one-for-one removal, outscale graveyard interaction, or punish tapping out. Hold up blue-blue on turns when the opponent can deploy a decisive spell, especially if your hand already has a later finisher. Do not counter minor threats that `Fatal Push`, `Dismember`, `Baleful Strix`, or combat can handle unless the visible tempo loss would expose lethal pressure.
-`Psychic Frog`: Deploy `Psychic Frog` when it can pressure planeswalkers, stabilize combat, or turn discard/graveyard resources into a threat. Attack only when the visible block and crack-back math allow it; keeping `Psychic Frog` untapped is often stronger against creature decks. Use discard and graveyard-exile abilities only through legal runtime actions and visible costs; do not spend the graveyard so aggressively that `Cling to Dust`, `Drown in the Loch`, `Snapcaster Mage`, or `Tasigur, the Golden Fang` becomes stranded.
-`Quantum Riddler`: Treat `Quantum Riddler` as a major tap-out advantage threat only after a card text check at runtime. Card text check required before assigning exact combat, selection, or trigger value. In play, prefer committing it when discard or counters have cleared the way, when the opponent is low on visible pressure, or when holding mana will not answer the actual board.
-`Baleful Strix`: Cast `Baleful Strix` to buy time, replace itself, and make attacks awkward. It is strongest against creature pressure where a cantrip deathtouch blocker trades up, and weaker when the opponent is ignoring combat or going over the top. Do not hold it for imagined value if the battlefield needs an immediate blocker, but avoid walking it into a known sweeper when the extra card is not needed.
-`Tamiyo, Inquisitive Student`: Use `Tamiyo, Inquisitive Student` as an early permanent that can reward longer games, but verify exact text before relying on transformation or draw-count lines. Card text check required for trigger thresholds and backside abilities. Lead with it when the hand already covers turn-two interaction; avoid it when spending turn one on `Thoughtseize` or `Fatal Push` clearly prevents more damage or disruption.
-`Snapcaster Mage`: Save `Snapcaster Mage` for a specific graveyard spell that changes the turn, not as a generic body. High-value flashback targets are usually `Fatal Push`, `Thoughtseize`, `Counterspell`, `Drown in the Loch`, `Cling to Dust`, `Dismember`, `Spell Snare`, or `Sink into Stupor`, depending on visible legality. Do not exile or consume key graveyard cards with other effects before checking whether `Snapcaster Mage` is your best next-turn line.
-`Cling to Dust`: Use `Cling to Dust` as flexible graveyard control, life buffer, and late card flow. Exile opponent graveyard cards that enable recursion, escape, delve, reanimation, or `Drown in the Loch` math against you; target your own graveyard only when the legal draw or life mode is worth weakening `Snapcaster Mage`, `Tasigur, the Golden Fang`, or `Psychic Frog`. Escape should be paced carefully because this deck has several graveyard consumers.
-`Spell Snare`: Use `Spell Snare` to trade up on tempo against two-mana engines, threats, and interaction. It is strongest on turns one through three and post-board against decks whose key plays cluster at mana value two. Do not hold `Spell Snare` forever once the opponent's visible plan has moved past two-mana spells; if no legal target appears, sequence other interaction and threats normally.
-`Drown in the Loch`: Use `Drown in the Loch` as a scalable counter or removal spell once the opponent's graveyard supports the legal mode. Enable it with normal exchanges, fetchlands, discard, and removal, but do not assume it answers early plays before the graveyard count is visible. Be careful with `Cling to Dust` and `Surgical Extraction` post-board because shrinking the opponent's graveyard can turn off your own `Drown in the Loch`.
-`Dismember`: Use `Dismember` for creatures outside `Fatal Push` range, creatures that must die immediately, or turns where mana efficiency matters more than life. Pay life only when the visible clock, stack, or mana constraints justify it. Against aggressive decks, treat every life payment as a real cost; against combo or big threats, the tempo may be worth it.
-`Force of Negation`: Use `Force of Negation` as emergency protection against noncreature spells and as a way to survive while tapped low. Card text check required for exact pitch timing and exile clauses in the active rules engine. Do not pitch a crucial blue card unless the spell being countered is more important than the lost card plus card disadvantage.
-`Sink into Stupor`: Use `Sink into Stupor` as a tempo reset or flexible mana/spell slot only according to the legal actions shown. Card text check required for exact spell face, land face, target class, and timing. As interaction, prioritize bouncing a stack object or permanent when the delay protects a threat, prevents lethal, breaks a combat step, or reopens a counter window.
-`Kaito, Bane of Nightmares`: Commit `Kaito, Bane of Nightmares` when the battlefield can protect it or when its legal abilities immediately stabilize or generate advantage. Card text check required for exact loyalty, combat, and timing behavior. Do not tap out for it into visible attackers unless `Baleful Strix`, `Psychic Frog`, removal, or a bounce line can defend it.
-`Tasigur, the Golden Fang`: Use `Tasigur, the Golden Fang` as a cheap late threat and mana sink after trading resources. Delve only the least valuable graveyard cards first, preserving flashback, escape, `Drown in the Loch` support, and `Psychic Frog` fuel when possible. In grindy games, activate only when the returned card will matter more than holding up counters or removal.
-`Prismatic Vista`: Use `Prismatic Vista` to fix the exact colors needed for the next two turns and to enable revolt when that changes a legal `Fatal Push` target. Fetch basics to manage life and color access; do not crack purely for thinning if holding it could improve revolt timing.
-`Watery Grave`, `Darkslick Shores`, `Gloomlake Verge`, `Island`, `Swamp`, and `Otawara, Soaring City`: Sequence lands to preserve turn-one black, turn-two blue-blue when needed, and enough untapped mana for interaction. Shock with `Watery Grave` only when the extra untapped mana affects current legal plays. Use `Otawara, Soaring City` as a land when mana is constrained and as an interaction spell only when the visible target and tempo justify saving it.
- Discard the card that beats the current hand, not the abstract strongest card. Use `Thoughtseize` first on combo engines, planeswalkers, sweepers, or threats that dodge the visible mix of `Fatal Push`, `Dismember`, `Drown in the Loch`, `Counterspell`, and `Force of Negation`; take cheap pressure only when life total or mana says you cannot absorb the next two attacks.
- Counter the spell that changes the game state in a way your hand cannot undo. Save `Counterspell` for must-answer noncreature engines, resilient threats, opposing card-advantage bursts, and protection for your own `Kaito, Bane of Nightmares`, `Quantum Riddler`, or `Tasigur, the Golden Fang`; use `Spell Snare` aggressively on legal two-mana plays before it rots.
- Spend `Force of Negation` only when tapping out, losing the stack fight, or allowing the spell to resolve would invalidate the game plan. Pitching a blue card is acceptable to stop a decisive noncreature spell, but do not exile `Counterspell`, `Psychic Frog`, `Snapcaster Mage`, `Sink into Stupor`, or `Quantum Riddler` for a replaceable exchange unless the visible board demands it. Card text check required for exact timing and exile behavior.
- Remove creatures by threat-to-answer mismatch. Use `Fatal Push` on early attackers, mana creatures, and creatures whose mana value is legal after revolt; reserve `Dismember` for larger creatures, immediate lethal pressure, or turns where paying life protects mana for `Counterspell`; use `Drown in the Loch` only after verifying the opponent graveyard count supports the removal mode.
- Bounce permanents or stack objects only when the tempo swing matters. Use `Sink into Stupor` or `Otawara, Soaring City` to stop lethal, reset a protected threat, save a key permanent, reopen a counter window, or remove a blocker for a decisive attack; do not bounce a low-impact permanent just to spend mana.
- Exile graveyards with a plan for your own graveyard economy. Use `Cling to Dust` and post-board `Surgical Extraction` on cards enabling recursion, delve, escape, reanimation, combo loops, or repeated threats; avoid shrinking the opponent graveyard when `Drown in the Loch` is your needed answer, and avoid consuming your own graveyard when `Snapcaster Mage`, `Tasigur, the Golden Fang`, or `Psychic Frog` needs fuel.
- Bait interaction with lower-commitment cards before tapping out for engines. `Baleful Strix`, `Tamiyo, Inquisitive Student`, and sometimes `Psychic Frog` can expose removal or counters before `Kaito, Bane of Nightmares` or `Quantum Riddler`; against fast creature decks, stop calling them bait if they are needed immediately to block or stabilize. Card text check required before relying on exact `Tamiyo, Inquisitive Student` or `Quantum Riddler` trigger value.
- Ignore cards that do not pressure life, resources, stack safety, or planeswalkers before your next relevant turn. Let minor creatures sit when `Baleful Strix` blocks them, let low-impact cantrips resolve when a must-counter threat is likely, and avoid `Thoughtseize` taking a redundant card when a unique payoff or answer is visible.
- Shift interaction by archetype. Against aggro, prioritize life preservation and board removal over speculative discard; against combo, prioritize `Thoughtseize`, `Counterspell`, `Force of Negation`, `Damping Sphere`, and `Surgical Extraction`; against control, protect threats and fight card advantage; against graveyard decks, value `Cling to Dust`, `Surgical Extraction`, and `Drown in the Loch` tension carefully; against go-wide boards, post-board `Toxic Deluge` can become the reset but must be weighed against life total.
- Preserve life until the game is safely under control. Treat 12 life as the point where shocklands, `Thoughtseize`, and `Dismember` payments need visible justification, treat 8 life as danger against creature decks, and treat 5 or less as survival mode where blocking and removal beat long-term value.
- Attack with `Psychic Frog` only when the crack-back and blocker math are favorable. Keep it untapped against boards where blocking, discard fuel, or threat-of-activation protects more life than the attack gains; attack more freely against control, combo, or empty boards where pressure matters. Card text check required for exact combat and discard abilities.
- Trade `Baleful Strix` up early and gladly. Block the largest legal attacker it can trade with, protect planeswalkers when needed, and do not save it for later if the current attack meaningfully changes life total or buys a turn for `Counterspell`, `Kaito, Bane of Nightmares`, or `Tasigur, the Golden Fang`.
- Use `Snapcaster Mage` as a spell first and a body second. Flash it in to rebuy the exact interaction that changes combat or stack math; block with it when life or planeswalker loyalty matters more than future flashback value. Avoid attacking it into trades unless the graveyard plan is already spent or pressure is the only path.
- Commit `Tasigur, the Golden Fang` to combat as a stabilizer, not just a clock. Block medium attackers when preserving life unlocks a longer control game, attack when the opponent has few profitable blocks, and avoid delving away cards needed for `Cling to Dust`, `Snapcaster Mage`, `Drown in the Loch`, or `Psychic Frog`.
- Defend `Kaito, Bane of Nightmares` with bodies and removal before seeking loyalty value. If visible attackers can kill it, leave `Baleful Strix`, `Psychic Frog`, or `Tasigur, the Golden Fang` back unless the legal ability immediately removes pressure or the attack creates a faster win. Card text check required for exact planeswalker and combat behavior.
- Race only when interaction covers the next opposing turn. `Psychic Frog`, `Quantum Riddler`, `Tasigur, the Golden Fang`, and creature-land style pressure from legal actions can close games, but Dimir Control should not race blindly while holding removal or counters that prevent a worse exchange. Card text check required for `Quantum Riddler` combat impact.
- Block differently by matchup. Against aggro, trade creatures early and spend removal before damage when life is low; against midrange, trade when it protects a planeswalker or preserves card advantage; against control, avoid unnecessary trades that reduce your threat count; against combo, attack to shorten the clock unless a blocker is needed to avoid lethal.
- Protect engines from obvious combat punishment. Do not expose `Tamiyo, Inquisitive Student`, `Psychic Frog`, `Quantum Riddler`, or `Kaito, Bane of Nightmares` to visible attacks or removal lines when passing with mana and interaction produces the same pressure with less risk.
- Use pseudo-selection to answer the next visible problem, because Dimir Control has no true main-deck tutor. Treat `Thoughtseize`, `Baleful Strix`, `Cling to Dust`, `Psychic Frog`, `Snapcaster Mage`, `Kaito, Bane of Nightmares`, and `Quantum Riddler` as ways to shape resources, not as permission to ignore board pressure. Card text check required for exact `Psychic Frog`, `Kaito, Bane of Nightmares`, and `Quantum Riddler` selection text.
- Lead with `Thoughtseize` when the hand needs information before choosing a threat or leaving mana open. Take the card that beats the current hand, not the famous card: remove the unique combo piece, the answer to `Psychic Frog` or `Kaito, Bane of Nightmares`, the payoff that invalidates removal, or the threat that slips under `Counterspell`.
- Sequence draw before land drops when the legal draw is low-risk and the land choice matters. Cast or use `Baleful Strix`, `Cling to Dust`, or a known draw/filter action before playing a land when you are choosing between untapped blue, untapped black, `Prismatic Vista`, or holding `Sink into Stupor` as a spell. Play the land first when the draw spell itself requires mana you may lose by waiting.
- Preserve `Prismatic Vista` until revolt, color fixing, or library thinning matters. Fetch before casting `Fatal Push` only when revolt is needed by visible legal text; fetch before selection only when the deck must have a specific basic color immediately; otherwise delay fetches to keep land-drop information flexible and reduce unnecessary life or sequencing exposure.
- Treat `Sink into Stupor` as a spell unless mana failure is the immediate risk. Use it as a land only when missing a land drop prevents holding `Counterspell`, casting `Psychic Frog`, casting `Baleful Strix`, or double-spelling next turn; keep it as interaction when the hand already has enough lands or the opponent has a stack/permanent line that bounce can answer. Card text check required for exact modal land behavior.
- Choose `Snapcaster Mage` targets by present-turn impact first. Rebuy `Fatal Push`, `Spell Snare`, `Counterspell`, `Drown in the Loch`, `Thoughtseize`, `Cling to Dust`, `Dismember`, or `Sink into Stupor` only when the target is legal and changes the current exchange; do not spend `Snapcaster Mage` for a low-impact cantrip line if holding it threatens a stronger response.
- Manage graveyards as shared fuel. Keep enough cards for `Drown in the Loch` thresholds, `Snapcaster Mage` targets, `Cling to Dust`, `Tasigur, the Golden Fang`, and `Psychic Frog`; exile only the card that matters when graveyard hate is needed, and avoid automatic self-exile if the next turn needs delve, flashback-style value, or discard fuel.
- Bottom or decline low-impact selection when interaction density is already high. When scry, surveil, draw-discard, or similar choices appear from legal actions, prioritize missing land drops early, then cheap interaction, then card advantage engines, then finishers; bottom redundant expensive cards when under pressure and bottom narrow counters when the opponent is winning on board.
- Hold priority with a purpose, because this deck wins by trading at the right window. Pass when the opponent must act first, but stop to act before combat damage, before a planeswalker dies, before a key spell resolves, or before a graveyard card leaves the window where `Cling to Dust`, `Drown in the Loch`, `Snapcaster Mage`, or sideboard `Surgical Extraction` can matter.
- Counter the spell that changes the game, not the first legal spell. Use `Spell Snare` on legal two-mana threats or engines before it loses relevance; use `Counterspell` on payoffs, planeswalkers, sweepers, and cards that beat the visible hand; use `Force of Negation` when tapped out or when a noncreature spell resolving is worse than pitching a blue card. Card text check required for exact `Force of Negation` restrictions.
- Let low-impact spells resolve when removal or discard can clean up later. Do not spend `Counterspell`, `Drown in the Loch`, or `Force of Negation` on cantrips, redundant small creatures, or minor setup if the opponent can still cast a must-answer payoff and your hand has no second answer.
- Use removal at the latest safe point unless timing changes value. Cast `Fatal Push` or `Dismember` before damage when life, planeswalker loyalty, revolt, pump spells, sacrifice outlets, or combat tricks matter; otherwise wait to make the opponent commit mana, attacks, equipment, auras, or protection first.
- Choose `Drown in the Loch` mode only after checking public graveyard count and legal targets. Counter mode is preferred for stack threats that cannot be profitably answered later; removal mode is preferred when the permanent will snowball, attack a planeswalker, or force life-loss payments from `Dismember` and shocklands.
- Use `Cling to Dust` at instant speed when the target card matters now. Exile recursion targets, escape/delve fuel, reanimation targets, or flashback-style cards in response to the opponent using them; avoid firing it into open uncertainty if it weakens your own `Drown in the Loch`, `Snapcaster Mage`, `Tasigur, the Golden Fang`, or `Psychic Frog` plan.
- Cast `Snapcaster Mage` during the opponent's turn when the rebought spell is interaction. Flash it in to counter, remove, discard before a draw step only when legal and tactically justified, or create a blocker; cast it main phase only when the chosen graveyard spell must be sorcery-speed or the body advances a protected planeswalker line.
- Bounce with `Sink into Stupor` or `Otawara, Soaring City` in response to commitment. Target a spell, attacker, blocker, aura/equipment target, protected threat, or lethal permanent only when the legal action text supports it; bouncing before the opponent commits resources gives away tempo unless it prevents immediate loss.
- Respect optional payments and triggers as resource decisions. Pay life, exile cards, discard cards, or pitch to `Force of Negation` only when the resulting exchange protects the control role, stabilizes the board, or closes the game; decline optional value that consumes the mana or graveyard needed for the next visible stack fight.
-`Consign to Memory` is the sideboard answer for colorless spells, triggered/activated pressure, artifact-centric engines, and high-impact permanents that do not line up cleanly with `Fatal Push` or `Dismember`. Bring it against artifact decks, big-mana shells, eldrazi-style threats, cascade/discover-style noncreature engines if legal action text supports it, and opponents where the stack contains colorless or triggered threats that must be stopped before resolution. Keep it low priority against creature decks whose key cards are cheap colored creatures, and do not bring it merely because the opponent has incidental artifacts if `Counterspell`, `Drown in the Loch`, and removal already answer the real threats.
-`Stern Scolding` is the cheap creature-permission package for low-toughness creature decks where tempo matters more than broad answers. Bring it against aggressive starts, small creature engines, mana creatures, sacrifice creatures, and creature-combo enablers that must be stopped before entering the battlefield. It becomes weaker when the opponent wins through planeswalkers, large creatures, graveyards, or noncreature spells; in those matchups preserve more flexible interaction such as `Counterspell`, `Drown in the Loch`, `Force of Negation`, and `Sink into Stupor`.
-`Surgical Extraction` is graveyard pressure, combo disruption, and information leverage rather than generic card advantage. Bring it when a specific graveyard card, repeated threat, recursion loop, delve/escape-style fuel, or combo piece is central and already reaches a public zone. Pair it with `Thoughtseize`, `Counterspell`, `Drown in the Loch`, `Fatal Push`, `Dismember`, and `Cling to Dust` so the first copy reaches the graveyard before extraction. It is poor when the opponent has many interchangeable threats, when life total is under heavy pressure, or when graveyard cards are not essential to their plan.
-`Damping Sphere` is the dedicated anti-combo and anti-big-mana permanent. Bring it against decks that depend on many spells in one turn, land-based burst mana, ritual-like sequencing, or large mana turns that ignore one-for-one control. It changes this deck from pure answer density into a lock-and-answer plan: resolve `Damping Sphere`, protect it with `Counterspell`, `Force of Negation`, `Mystical Dispute`, or `Consign to Memory`, and win slowly with `Psychic Frog`, `Quantum Riddler`, `Kaito, Bane of Nightmares`, `Tasigur, the Golden Fang`, or chip damage. It is bad when it also constrains your own double-spell recovery more than the opponent, especially against fair creature decks.
-`Harbinger of the Seas` is a mana-denial creature for greedy manabases, utility-land decks, big-mana decks, and opponents relying on nonbasic lands for color access. Bring it when turning nonbasic lands into Islands is likely to deny colors, disable utility lands, or buy several turns. Treat it as a fragile lock piece: do not run it into obvious removal if waiting lets `Thoughtseize` or counter backup clear the way. It is weak against basic-heavy decks, mono-blue decks, opponents happy to have Islands, and creature decks where a three-mana body does not stabilize combat.
-`Mystical Dispute` is the efficient blue-fight card. Bring it against blue control, tempo, combo, and decks where counter wars decide whether `Kaito, Bane of Nightmares`, `Quantum Riddler`, `Psychic Frog`, `Damping Sphere`, or a key answer resolves. It also protects your own end-step or main-phase commitment when the opponent is representing blue interaction. It loses value against low-blue creature decks, discard-heavy attrition where topdeck quality matters more than stack fights, and board states where removal or sweepers are the bottleneck.
-`Toxic Deluge` is the reset button against creature density and boards that beat one-for-one removal. Bring it against go-wide aggro, creature-combo, tribal decks, tokens, and board states where `Fatal Push`, `Dismember`, `Drown in the Loch`, and blockers cannot keep pace. Use life total as a resource but not as decoration: choose the smallest life payment that kills the required threats, preserves a key `Psychic Frog`, `Baleful Strix`, `Snapcaster Mage`, or `Tasigur, the Golden Fang` when possible, and prevents lethal follow-up. It is bad against creature-light control, spell combo, and decks whose main threats survive the realistic life payment.
Balanced plan versus blue control or blue spell-combo
Side in: 2 Mystical Dispute; 2 Consign to Memory; 2 Surgical Extraction
Cut: 4 Fatal Push; 2 Dismember
- Role after boarding: become a stack-and-information deck. `Thoughtseize` should identify whether the fight is about a resolved threat, a combo card, or protecting your own engine; `Mystical Dispute` and `Counterspell` should guard decisive turns rather than small cantrips. `Surgical Extraction` is strongest after discard or a counter puts a key card into the graveyard, especially when public information shows the opponent has few alternate routes. Keep some creature answers if visible game data proves creatures still matter; otherwise emphasize permission, recursion, and engines.
Balanced plan versus low-curve creature aggro
Side in: 2 Stern Scolding; 2 Toxic Deluge
Cut: 2 Force of Negation; 2 Spell Snare
- Role after boarding: survive the first wave, trade mana efficiently, then turn the corner with a protected threat or planeswalker. `Stern Scolding`, `Fatal Push`, `Dismember`, `Baleful Strix`, and `Toxic Deluge` are the key stabilizers; `Thoughtseize` is still useful when it takes the card that beats your removal, but life loss and tempo must be respected. `Force of Negation` is less reliable when the opponent attacks through creatures, while `Spell Snare` depends on the opponent's exact curve and should regain value only if two-mana threats are visibly central.
Balanced plan versus big mana, artifact engines, or spell-chain combo
Side in: 3 Damping Sphere; 2 Consign to Memory; 2 Harbinger of the Seas
Cut: 4 Fatal Push; 2 Dismember; 1 Baleful Strix
- Role after boarding: establish a constraining permanent, then defend it. `Damping Sphere` is the cleanest card when the opponent needs burst mana or multiple spells; `Harbinger of the Seas` punishes nonbasic-dependent mana; `Consign to Memory` handles colorless or triggered pressure that slips around normal counters. Reduce emphasis on creature removal only when public information shows creatures are secondary. Keep `Thoughtseize` because it clears the way for `Damping Sphere` or finds the payoff that must be countered.
Balanced plan versus graveyard recursion or single-card graveyard combo
Side in: 2 Surgical Extraction; 2 Consign to Memory
Cut: 2 Spell Snare; 2 Dismember
- Role after boarding: answer the first copy, then prevent repetition. `Cling to Dust` and `Surgical Extraction` should target cards that matter to the opponent's actual line, not random graveyard volume. Preserve `Drown in the Loch` thresholds when possible, but prioritize stopping the graveyard card that will win or undo your trades. `Consign to Memory` is included only when the opponent's graveyard deck also uses colorless, triggered, or activated pressure; if not, prefer keeping more removal or permission based on visible threats.
- Add role cards: against creature decks, add `Stern Scolding` and `Toxic Deluge`; against blue decks, add `Mystical Dispute`; against graveyards, add `Surgical Extraction`; against big mana or artifact/colorless engines, add `Damping Sphere`, `Consign to Memory`, and sometimes `Harbinger of the Seas`.
- Reduce main-deck emphasis: against creature-light decks, lower reliance on `Fatal Push` and `Dismember`; against fast creature decks, lower reliance on `Force of Negation`, slow graveyard value, and expensive tap-out lines; against big mana, lower reliance on one-for-one creature removal; against attrition mirrors, lower reliance on narrow counters when the opponent's threats are diverse.
- Recheck after each game because sideboarding is conditional on seen cards. If the opponent showed a threat that invalidates the default plan, keep the answer that interacts with that threat even when the archetype label suggests otherwise. If a sideboard card has no visible targets after Game 2, prioritize flexible main-deck cards over narrow hate for Game 3.
- Aggro: Take the control role immediately and spend mana before protecting card advantage. Prioritize `Fatal Push`, `Stern Scolding`, `Dismember`, `Baleful Strix`, and `Toxic Deluge` over slower value if the opponent can convert early creatures into lethal pressure. Keep `Thoughtseize` when it takes the card that beats your removal or reveals whether you need to save `Counterspell`, but avoid casual life payments when the battlefield already demands stabilization. `Psychic Frog` is a blocker first until attacks are safe; `Quantum Riddler`, `Kaito, Bane of Nightmares`, and `Tasigur, the Golden Fang` become win conditions only after the first wave is contained. Add role cards: `Stern Scolding`; `Toxic Deluge`. Reduce main-deck emphasis: `Force of Negation`; slow graveyard value from `Cling to Dust`; tap-out threats without defensive follow-up.
- Control: Become the information-and-threat deck rather than the pure answer deck. Use `Thoughtseize` to map the counter fight, then resolve one durable pressure source such as `Psychic Frog`, `Kaito, Bane of Nightmares`, `Quantum Riddler`, or `Tasigur, the Golden Fang` while holding `Counterspell`, `Mystical Dispute`, `Drown in the Loch`, or `Force of Negation` for opposing haymakers. Do not fire counters at low-impact card flow unless the hand cannot answer the payoff later. `Snapcaster Mage` is strongest when it reuses `Thoughtseize`, `Counterspell`, or a removal spell that protects a planeswalker. Add role cards: `Mystical Dispute`; `Consign to Memory` when the opponent showed colorless, triggered, or activated threats; `Surgical Extraction` when a named graveyard target or narrow win condition is public. Reduce main-deck emphasis: `Fatal Push`; `Dismember`; excess creature-only interaction.
- Combo: Identify whether the matchup is hand-based, stack-based, graveyard-based, mana-based, or permanent-based before spending the first answer. `Thoughtseize` should take the unique enabler, payoff, or protection spell revealed by the rules engine, not the card that merely looks expensive. Preserve `Counterspell`, `Force of Negation`, `Spell Snare`, and `Drown in the Loch` for the turn the opponent tries to win unless visible pressure forces a different line. Add role cards: `Damping Sphere` for spell-chain or burst-mana combo; `Surgical Extraction` for graveyard or one-card repetition; `Consign to Memory` for colorless, triggered, or activated combo pieces; `Mystical Dispute` for blue combo. Reduce main-deck emphasis: creature removal that has no legal target in the revealed plan.
- Tempo: Fight over mana efficiency and board parity, not long-game inevitability. Kill the first threat with `Fatal Push`, `Dismember`, `Drown in the Loch`, or `Stern Scolding` when it would force you to act under pressure every turn. Avoid tapping out into open mana unless `Thoughtseize` confirms the way is clear or the legal action is necessary to survive. `Baleful Strix` is valuable because it blocks while replacing itself, but do not rely on it if the opponent has shown evasive or noncombat pressure. Add role cards: `Stern Scolding`; `Mystical Dispute` against blue tempo. Reduce main-deck emphasis: slow delve or planeswalker commitments that cannot be defended.
- Midrange: Trade one-for-one early, then win with card quality and recursive decisions. `Thoughtseize` should take the card that invalidates your answer suite or produces a two-for-one, while `Fatal Push`, `Dismember`, and `Drown in the Loch` handle threats that are already legal targets. `Cling to Dust` matters more here because small graveyard exchanges can become real resource edges; use it conditionally and do not shrink your own `Drown in the Loch`, `Snapcaster Mage`, or `Tasigur, the Golden Fang` lines without a reason. Add role cards: `Toxic Deluge` if they overload the board; `Surgical Extraction` if their graveyard recursion is central. Reduce main-deck emphasis: narrow counters when threats are spread across costs and card types.
- Big mana: Stop the engine before answering the payoff whenever the visible game state says mana is the bottleneck. `Damping Sphere` is the highest-leverage role card against decks that need burst mana or multiple spells in one turn, and `Harbinger of the Seas` is strongest when nonbasic lands are visibly carrying colors or utility. Use `Thoughtseize` to clear the way for the hate permanent or remove the payoff that beats it. Hold `Counterspell`, `Force of Negation`, `Drown in the Loch`, and `Consign to Memory` for the first action that converts mana into a win or a lock. Reduce main-deck emphasis: `Fatal Push`; `Dismember`; `Baleful Strix` when blocking is not relevant.
- Graveyard: Treat the graveyard as a resource to ration, not a pile to empty automatically. Use `Cling to Dust` and `Surgical Extraction` on the card that the opponent is actively using, the card revealed by discard, or the card whose removal changes the legal future actions most. Preserve your own graveyard when `Snapcaster Mage`, `Drown in the Loch`, or `Tasigur, the Golden Fang` is part of the next-turn plan. `Thoughtseize` plus `Surgical Extraction` is a strong line only when the extracted card is central and public information supports that conclusion. Add role cards: `Surgical Extraction`; `Consign to Memory` only when their graveyard plan also uses colorless, triggered, or activated pressure. Reduce main-deck emphasis: removal without legal targets.
- Artifact/enchantment: Separate artifact mana, artifact creatures, triggered engines, and enchantment locks because your answers differ. `Consign to Memory` and `Damping Sphere` carry the artifact/colorless and engine matchups; `Fatal Push`, `Dismember`, and `Drown in the Loch` still matter if the artifact plan attacks with creatures. Do not assume enchantments are answerable once resolved; use `Thoughtseize`, `Counterspell`, `Force of Negation`, or `Drown in the Loch` before they enter if the visible legal actions show a must-counter permanent. Add role cards: `Consign to Memory`; `Damping Sphere`; `Harbinger of the Seas` when the artifact shell depends on nonbasic lands. Reduce main-deck emphasis: creature-only removal only after confirming creatures are secondary.
- Go-wide: Preserve life total and cards until `Toxic Deluge` or repeated cheap removal can reset the board. Do not trade `Counterspell` for a single small creature if the real problem is board quantity; save counters for anthem effects, token engines, or cards that rebuild after a sweeper. `Baleful Strix` buys time but does not solve multiple attackers alone. Choose the smallest `Toxic Deluge` payment that stops lethal or breaks the attack, and keep a protected `Psychic Frog`, `Quantum Riddler`, or planeswalker only when survival remains likely. Add role cards: `Toxic Deluge`; `Stern Scolding` for low-cost creatures. Reduce main-deck emphasis: `Force of Negation`; slow tap-out pressure.
- Single-threat: Answer the first must-answer threat cleanly and avoid over-sideboarding into sweepers. `Fatal Push`, `Dismember`, `Drown in the Loch`, `Counterspell`, and `Force of Negation` should be sequenced so one visible threat does not force multiple cards unless protection is shown. `Thoughtseize` is excellent when it identifies the threat plus the protection spell. `Baleful Strix` can force awkward attacks against ground threats, while `Psychic Frog` can pressure once the single threat is contained. Add role cards: `Mystical Dispute` against blue protection; `Surgical Extraction` if the threat is recurring or the deck has few win conditions. Reduce main-deck emphasis: `Toxic Deluge` unless they can pivot wide.
- Burn: Life total is the primary resource and every shock, fetch, `Thoughtseize`, `Dismember`, and `Toxic Deluge` payment needs a survival reason. Use `Fatal Push`, `Stern Scolding`, and `Counterspell` to stop damage sources efficiently, and prefer `Cling to Dust` lines that gain life or deny recursive burn only when legal text confirms the mode. `Baleful Strix` and `Psychic Frog` should trade or block before attacking unless racing is clearly forced. Add role cards: `Stern Scolding`; `Mystical Dispute` only if the burn shell is blue; `Toxic Deluge` only for creature-heavy versions. Reduce main-deck emphasis: painful interaction and slow engines when they do not affect damage this turn.
- Removal-heavy decks: Do not expose every threat at once. Lead with discard or a lower-commitment threat, then force the opponent to answer `Psychic Frog`, `Quantum Riddler`, `Kaito, Bane of Nightmares`, or `Tasigur, the Golden Fang` one at a time. `Snapcaster Mage` should usually rebuy discard, counters, or removal after both players have traded resources. Protect a resolved engine with `Counterspell`, `Mystical Dispute`, or `Force of Negation` only when it is likely to dominate the visible board; otherwise conserve interaction for the opponent's next real threat. Add role cards: `Mystical Dispute` against blue removal piles; `Surgical Extraction` against recursive removal or threat loops. Reduce main-deck emphasis: narrow creature removal if the opponent is threat-light.
- General/archetype-only note: Revealed cards, legal actions, and public zones override these assumptions. Use these notes as a starting model until `Thoughtseize`, combat, graveyards, land patterns, or resolved permanents identify the opponent's actual plan.
- Fast creature decks: Protect life total first and turn the corner only after the attack step is controlled. Priority targets are haste threats, pump engines, creatures that invalidate `Baleful Strix`, and anything that makes `Fatal Push` or `Dismember` worse later. Likely role cards are `Stern Scolding` and `Toxic Deluge`; reduce emphasis on slow `Kaito, Bane of Nightmares`, excess `Force of Negation`, and painful `Dismember` when life is already pressured.
- Blue tempo or flash decks: Fight on mana efficiency and do not tap out into an obvious counter window unless the threat must resolve now. Priority targets are one-mana threats, cheap protection, and card-advantage engines that turn your removal into tempo loss. Likely role cards are `Mystical Dispute` and `Stern Scolding`; `Consign to Memory` applies only when visible colorless, triggered, or activated text matters.
- Graveyard decks: Use `Thoughtseize` to identify the graveyard card that actually matters before firing narrow hate. Priority targets are recursive threats, reanimation payoffs, flashback-style engines, and cards that make `Drown in the Loch` unreliable by changing graveyard size or access. Likely role cards are `Surgical Extraction` and sometimes `Cling to Dust`; avoid emptying your own graveyard when `Snapcaster Mage`, `Drown in the Loch`, or `Tasigur, the Golden Fang` is a near-term plan.
- Big mana and spell-chain decks: Stop mana conversion before spending answers on replaceable setup. Priority targets are mana engines, cost-reduction pieces, must-counter payoffs, and nonbasic land structures that make `Damping Sphere` or `Harbinger of the Seas` decisive. Likely role cards are `Damping Sphere`, `Harbinger of the Seas`, and `Consign to Memory`; reduce creature-only removal after confirming they are not winning through small creatures.
- Midrange mirrors: Trade resources cleanly, preserve a live graveyard, and avoid exposing multiple closers into one sweeper or removal sequence. Priority targets are planeswalkers, recursive threats, two-for-ones, and removal that cleanly answers `Psychic Frog`, `Quantum Riddler`, or `Tasigur, the Golden Fang`. Likely role cards are `Mystical Dispute` against blue, `Surgical Extraction` against recursion, and `Toxic Deluge` only when the battlefield becomes the axis.
- Combo or engine decks: Use discard to choose whether the game is about speed, protection, or a single payoff. Priority targets are the card that starts the engine, the protection spell that beats `Counterspell`, or the payoff that ends the game through normal removal. Likely role cards are `Damping Sphere`, `Consign to Memory`, `Mystical Dispute`, and `Surgical Extraction` depending on revealed card type and graveyard reliance.
- Mana risk: The deck needs early black for `Thoughtseize` and `Fatal Push`, early blue for `Spell Snare` and `Counterspell`, and enough untapped sources to double-spell later. Do not overuse `Watery Grave`, `Prismatic Vista`, `Thoughtseize`, `Dismember`, or `Toxic Deluge` life payments when the opponent's visible plan attacks life total.
- Matchup risk: Creature-light opponents can strand `Fatal Push`, `Dismember`, and `Baleful Strix`. Creature-heavy opponents can punish hands that keep too many counters, slow threats, or graveyard-value cards without early removal.
- Draw risk: Hands with only answers and no `Psychic Frog`, `Quantum Riddler`, `Kaito, Bane of Nightmares`, `Tasigur, the Golden Fang`, or recursive `Snapcaster Mage` plan can stabilize without winning. Hands with only threats and no cheap interaction can lose before card advantage matters.
- Over-sideboarding risk: Do not dilute the core interaction shell just because sideboard cards are available. `Damping Sphere`, `Harbinger of the Seas`, `Surgical Extraction`, and `Toxic Deluge` are powerful only when the opponent's revealed plan makes their text relevant.
- Graveyard risk: `Cling to Dust`, `Snapcaster Mage`, `Drown in the Loch`, and `Tasigur, the Golden Fang` compete for graveyard resources. Avoid automatic exile lines that shrink `Drown in the Loch`, remove the best `Snapcaster Mage` target, or make `Tasigur, the Golden Fang` harder to deploy.
- Sweeper and removal risk: `Toxic Deluge` solves wide boards but can also put your life total in burn range. `Fatal Push` and `Dismember` answer creatures but may not answer planeswalkers, artifacts, enchantments, or spell-based engines once resolved.
- Closer risk: `Psychic Frog`, `Quantum Riddler`, and `Kaito, Bane of Nightmares` ask you to shift from pure defense to protection at the right moment. Card text check required for exact `Quantum Riddler` tactical triggers; use only legal actions and visible engine prompts.
- Interaction risk: `Force of Negation` can cost a blue card and may be poor in attrition if used on a low-impact spell. `Spell Snare` and `Stern Scolding` are efficient but narrow, so visible mana value and legal target text must drive use.
- Sequencing risk: Tapping out before the opponent's key turn can convert a winning control position into a forced race. Lead with discard when choosing between unknown threats, leave counter mana when public information signals a payoff, and deploy closers when the next legal interaction window can still be defended.
- Deciding factor: Identify whether the match was won by early disruption, stabilized removal, a protected threat, graveyard value, sideboard hate, or opponent stumble. Record the first turn where the game clearly shifted toward `Psychic Frog`, `Quantum Riddler`, `Kaito, Bane of Nightmares`, `Tasigur, the Golden Fang`, or a pure answer-lock plan.
- Mulligans: Check whether kept hands had enough early black for `Thoughtseize` or `Fatal Push`, enough early blue for `Spell Snare` or `Counterspell`, and at least one path to card flow or pressure. Flag keeps with only reactive cards and no closer, and flag keeps that relied on painful `Watery Grave`, `Thoughtseize`, `Dismember`, or `Toxic Deluge` against fast pressure.
- Mana: Review every loss for color tension between double-blue `Counterspell`, black one-mana interaction, and late double-spell turns. Note whether `Prismatic Vista`, `Darkslick Shores`, `Gloomlake Verge`, `Island`, `Swamp`, `Watery Grave`, or `Otawara, Soaring City` sequencing caused a missed legal action or forced an avoidable life payment.
- Velocity: Ask whether the deck saw enough cards before the opponent’s key turn. Track whether `Baleful Strix`, `Cling to Dust`, `Snapcaster Mage`, `Psychic Frog`, and `Quantum Riddler` converted resources into a decision advantage, or whether the game stalled with answers but no way to pull ahead.
- Engines: Record whether graveyard resources were spent in the correct order among `Cling to Dust`, `Drown in the Loch`, `Snapcaster Mage`, and `Tasigur, the Golden Fang`. Flag any automatic exile choice that weakened a later counter, removal flashback, or delve-style threat.
- Removal: Count how often `Fatal Push`, `Dismember`, `Drown in the Loch`, and `Toxic Deluge` answered the actual threat versus sitting stranded. Note whether `Spell Snare`, `Stern Scolding`, `Counterspell`, `Force of Negation`, `Mystical Dispute`, or `Consign to Memory` would have prevented the same problem earlier.
- Sideboard: Verify that every sideboard card brought in had visible text relevance in the matchup. `Damping Sphere`, `Harbinger of the Seas`, `Surgical Extraction`, `Consign to Memory`, `Mystical Dispute`, `Stern Scolding`, and `Toxic Deluge` should each be tied to a revealed spell type, mana pattern, graveyard dependency, stack fight, creature curve, or battlefield shape.
- Closing: Check whether the pilot turned the corner too late after stabilizing. A protected `Psychic Frog`, `Quantum Riddler`, `Kaito, Bane of Nightmares`, or `Tasigur, the Golden Fang` should begin ending the game once the opponent’s visible pressure is contained and interaction can still cover the next key action.
- Role: Compare the chosen role to the opponent’s revealed plan. Flag games where Dimir Control played too defensively against inevitability, too aggressively into open removal, or kept creature removal against a spell-based opponent after public information made it narrow.
- Mistakes: Mark any legal-action choice that spent premium interaction on a low-impact spell while a known payoff remained, tapped out before a likely key turn, attacked with a needed blocker, or passed with a stabilizing action available.
- Stranded cards: List every card stranded in hand for two or more decision cycles, especially `Spell Snare`, `Force of Negation`, `Dismember`, `Fatal Push`, `Baleful Strix`, `Kaito, Bane of Nightmares`, and sideboard cards. Separate bad card positioning from bad sequencing.
- Overperformers and underperformers: Record which cards materially changed game outcomes rather than which cards merely resolved. Track whether `Thoughtseize`, `Counterspell`, `Psychic Frog`, `Quantum Riddler`, `Baleful Strix`, `Snapcaster Mage`, and each sideboard card justified its slot in the actual tested field.
- Card quantities: Does `Spell Snare` line up often enough in Historic games to justify two main-deck copies, or should one slot become broader interaction if it is repeatedly stranded?
- Removal mix: Is four `Fatal Push` plus two `Dismember` correct against the tested creature field, or does the deck lose too much life and need more stack interaction or sweepers instead?
- Counter package: Does two `Force of Negation` protect the deck from combo and noncreature engines, or does the blue-card cost weaken attrition games where `Counterspell` and `Drown in the Loch` are already enough?
- Threat density: Are four `Psychic Frog`, four `Quantum Riddler`, two `Kaito, Bane of Nightmares`, one `Tasigur, the Golden Fang`, and two `Snapcaster Mage` enough closing power, or are stabilized games ending too slowly?
- Graveyard pressure: Are `Cling to Dust`, `Snapcaster Mage`, `Drown in the Loch`, and `Tasigur, the Golden Fang` fighting over the same graveyard too often, especially after `Surgical Extraction` enters post-board?
- Mana base: Does the deck need the current balance of `Island`, `Swamp`, `Watery Grave`, `Darkslick Shores`, `Prismatic Vista`, `Gloomlake Verge`, and `Otawara, Soaring City`, or are double-blue and early-black failures frequent enough to adjust land counts?
- Aggro plan: Are `Stern Scolding` and `Toxic Deluge` sufficient post-board against fast creature decks, or does the main deck need fewer painful cards such as `Dismember` and fewer slow cards such as `Kaito, Bane of Nightmares`?
- Control plan: Are `Mystical Dispute`, `Force of Negation`, `Thoughtseize`, and recursive `Snapcaster Mage` lines enough against blue mirrors, or does the deck need a more resilient closer than relying on small threats through removal?
- Big-mana plan: Do `Damping Sphere`, `Harbinger of the Seas`, `Consign to Memory`, and discard create enough disruption, or are big-mana opponents recovering before Dimir Control can close?
- Sideboard slots: Are three `Damping Sphere` necessary, or would the third copy be better as another flexible answer if big mana and spell-chain decks are not common in results?
- Role conflicts: Does the deck board into too many narrow hate cards and lose its ability to pressure, or does it stay too generic and fail to punish graveyard, big-mana, or blue-stack opponents?
- Closing failures: If repeated losses happen after stabilization, should tuning prioritize another threat, more card draw, or better protection for `Psychic Frog`, `Quantum Riddler`, and `Kaito, Bane of Nightmares` rather than more answers?
Use when: choosing keep or mulligan before the first turn.
Avoid when: the rules engine has already advanced past mulligans.
Instructions: Keep hands with two or three lands, both colors or a clear fetch path, and at least one early interaction or card-flow permanent. Mulligan one-land hands without multiple one-mana plays, hands with no black source for `Thoughtseize` or `Fatal Push`, and hands that cannot interact before turn three against unknown opponents.
Runtime cues: action:cast; visible hand contains early creature; available mana
Use when: selecting the first permanent that turns stabilization into pressure or cards.
Avoid when: holding up interaction is required against a visible combo, haste, or key noncreature turn.
Instructions: Prefer `Psychic Frog` when it can attack or block while preserving cards, `Baleful Strix` when a visible attacker must be blanked, `Tamiyo, Inquisitive Student` only when its text-relevant setup is legal and safe, and `Quantum Riddler` when the board is stable enough for a larger engine threat. Card text check required for `Quantum Riddler` and `Tamiyo, Inquisitive Student`; use only visible legal text.
Pilot skill floor: medium
No-API allowed: no
Light-model allowed: yes
### Policy: Mana Color Sequencing
Priority: High
Decision families: mana
Cards: Counterspell; Thoughtseize; Fatal Push; Drown in the Loch; Dismember; Watery Grave; Darkslick Shores; Prismatic Vista; Gloomlake Verge; Island; Swamp; Otawara, Soaring City
Phase windows: all turns; land play decisions; payment prompts
Runtime cues: action:play; action:pay; available lands; visible hand color requirements
Use when: choosing a land play, fetch land, or mana payment.
Avoid when: the only legal mana action is forced by the engine.
Instructions: Preserve early black for `Thoughtseize` and `Fatal Push`, preserve double blue for `Counterspell`, and avoid spending life from `Watery Grave` or `Dismember` unless the current turn or next opposing turn demands it. Treat `Otawara, Soaring City` as a spell-resource unless land count or color access requires playing it.
Pilot skill floor: medium
No-API allowed: no
Light-model allowed: yes
### Policy: Thoughtseize Target Opponent
Priority: Low
Decision families: interaction
Cards: Thoughtseize
Phase windows: main phase
Runtime cues: action:target opponent Thoughtseize
Use when: a legal `Thoughtseize` target action explicitly names the opponent as the target and no other `Thoughtseize` target action is being selected for a special rules reason.
Avoid when: the prompt is choosing a card from the revealed hand rather than choosing the player target.
Instructions: Choose the opponent target for `Thoughtseize` in normal one-on-one games, then route the revealed-card choice through tactical reasoning.
Pilot skill floor: low
No-API allowed: yes
Light-model allowed: yes
### Policy: Thoughtseize Card Selection
Priority: High
Decision families: interaction; selection
Cards: Thoughtseize
Phase windows: main phase; pre-combat main; post-combat main
Use when: selecting the nonland card to discard from a revealed hand.
Avoid when: the revealed set has only one legal selectable card.
Instructions: Take the card that most threatens the next two turn cycles: immediate payoff, card-advantage engine, answer to your only threat, or mana-constrained spell that unlocks their hand. Do not choose from assumed hidden cards; use only the revealed hand and public context.
Pilot skill floor: high
No-API allowed: no
Light-model allowed: yes
### Policy: Permission Commitment Gate
Priority: High
Decision families: priority; interaction
Cards: Counterspell; Force of Negation; Spell Snare; Drown in the Loch; Mystical Dispute; Consign to Memory; Stern Scolding
Phase windows: opponent cast windows; stack interaction; combat trick windows
Runtime cues: action:counter; action:cast Counterspell; action:cast Force of Negation; stack contains spell or ability
Use when: deciding whether to spend a counterspell or pass priority.
Avoid when: the stack object is visibly low-impact and the opponent has a known larger threat that the same answer can cover.
Instructions: Counter spells that break parity, invalidate your hand, create lethal pressure, or protect an opposing engine. Save narrow counters when the stack object is outside their intended role and you have removal or discard that can answer later.
Pilot skill floor: high
No-API allowed: no
Light-model allowed: yes
### Policy: Tap-Out Threat Gate
Priority: High
Decision families: priority; mana
Cards: Kaito, Bane of Nightmares; Tasigur, the Golden Fang; Quantum Riddler; Psychic Frog; Force of Negation; Counterspell
Phase windows: main phase; post-combat main
Runtime cues: action:cast Kaito, Bane of Nightmares; action:cast Tasigur, the Golden Fang; action:cast Quantum Riddler
Use when: casting a major threat or planeswalker would reduce available interaction.
Avoid when: opponent has an immediate visible lethal line or a known stack threat that must be covered.
Instructions: Commit a closer when the opponent is low on cards, their battlefield is contained, or waiting gives them more draw steps than you can answer. Prefer holding interaction when the closer would not affect the current danger or would expose you to a known payoff.
Pilot skill floor: high
No-API allowed: no
Light-model allowed: yes
### Policy: Removal Allocation
Priority: High
Decision families: interaction; priority
Cards: Fatal Push; Dismember; Drown in the Loch; Toxic Deluge; Baleful Strix; Psychic Frog
Phase windows: main phase; combat; end step; stack after creature spell resolves
Runtime cues: action:cast Fatal Push; action:cast Dismember; action:cast Drown in the Loch; action:cast Toxic Deluge; visible creatures
Use when: choosing whether and how to answer a creature board.
Avoid when: a block with `Baleful Strix` or `Psychic Frog` handles the threat without losing the game or the engine creature.
Instructions: Spend the cheapest clean answer on creatures that create immediate damage, snowballing triggers, or protect larger threats. Reserve `Toxic Deluge` for boards where the life payment and your own losses are outweighed by stabilizing the battlefield.
Pilot skill floor: high
No-API allowed: no
Light-model allowed: yes
### Policy: Fatal Push Target Gate
Priority: Medium
Decision families: interaction
Cards: Fatal Push
Phase windows: main phase; combat; end step
Runtime cues: action:target Fatal Push; visible target list; public permanent changes this turn
Use when: selecting a creature target for `Fatal Push`.
Avoid when: target legality or revolt-like conditions are unclear from action text; Card text check required if engine exposes multiple unusual target classes.
Instructions: Target the creature whose removal changes the next combat or protects your life total, prioritizing creatures that invalidate blocking or threaten immediate lethal. Do not assume hidden pump or protection unless public information shows it.
Pilot skill floor: medium
No-API allowed: no
Light-model allowed: yes
### Policy: Snapcaster Mage Recursion Target
Priority: Medium
Decision families: selection; interaction
Cards: Snapcaster Mage; Fatal Push; Thoughtseize; Counterspell; Drown in the Loch; Cling to Dust; Spell Snare; Dismember
Phase windows: flash windows if legal; main phase; opponent turn priority
Use when: choosing a graveyard card for `Snapcaster Mage` or deciding whether to cast it.
Avoid when: graveyard resources are needed for `Drown in the Loch`, `Cling to Dust`, or `Tasigur, the Golden Fang` and the current spell is not solving a real problem.
Instructions: Use `Snapcaster Mage` to rebuy the cheapest answer that addresses the current stack, battlefield, or revealed hand. Treat recursion target choice as tactical unless exactly one legal target exists.
Pilot skill floor: high
No-API allowed: no
Light-model allowed: yes
### Policy: Cling To Dust Graveyard Use
Priority: Medium
Decision families: selection; priority
Cards: Cling to Dust; Drown in the Loch; Snapcaster Mage; Tasigur, the Golden Fang; Surgical Extraction
Phase windows: main phase; end step; graveyard interaction windows
Runtime cues: action:cast Cling to Dust; action:target Cling to Dust; visible graveyards
Use when: graveyard exile, life, or card flow is available through legal action text.
Avoid when: exiling your own key instant or sorcery weakens a visible `Snapcaster Mage` line, `Drown in the Loch` sizing, or `Tasigur, the Golden Fang` deployment.
Instructions: Use `Cling to Dust` first to break opposing graveyard dependency or buy life under pressure, then to draw when the game is stable. Choose targets from visible graveyards only.
Pilot skill floor: medium
No-API allowed: no
Light-model allowed: yes
### Policy: Psychic Frog Combat
Priority: Medium
Decision families: combat; priority
Cards: Psychic Frog
Phase windows: declare attackers; declare blockers; combat damage; end step
Runtime cues: action:attack with Psychic Frog; action:block with Psychic Frog; action:activate Psychic Frog
Use when: `Psychic Frog` has legal combat or activated choices.
Avoid when: attacking removes the only blocker against visible lethal pressure or discarding/exiling cards would damage a stronger graveyard or permission line.
Instructions: Use `Psychic Frog` as a pressure engine after stabilization and as a blocker when life total matters more than damage. Card text check required for any activated or triggered mode; follow engine legality and visible costs.
Pilot skill floor: medium
No-API allowed: no
Light-model allowed: yes
### Policy: Baleful Strix Trading
Priority: Medium
Decision families: combat
Cards: Baleful Strix
Phase windows: declare blockers; attack decisions
Runtime cues: action:block with Baleful Strix; visible attacker list
Use when: deciding attacks or blocks involving `Baleful Strix`.
Avoid when: the opponent has visible first strike, prevention, evasion, or text that makes the block fail; Card text check required if combat keywords are unfamiliar.
Instructions: Block with `Baleful Strix` to trade up, preserve life, or force damage through deathtouch-like text if confirmed by engine output. Do not attack with it when its blocking role is needed next turn.
Pilot skill floor: medium
No-API allowed: no
Light-model allowed: yes
### Policy: Force Of Negation Pitch Gate
Priority: High
Decision families: interaction; selection
Cards: Force of Negation; Counterspell; Psychic Frog; Quantum Riddler; Snapcaster Mage; Kaito, Bane of Nightmares; Sink into Stupor; Consign to Memory; Mystical Dispute
Phase windows: opponent turn; stack interaction
Runtime cues: action:cast Force of Negation; prompt:exile a blue card; visible hand
Use when: deciding whether to cast `Force of Negation` or which blue card to exile.
Avoid when: the stack spell can be answered later by cheaper interaction or the pitch card is the only route to pressure or card flow.
Instructions: Pitch only to stop a spell that would win, lock, or invalidate the game before untapping. Prefer exiling the least unique blue card after preserving active answers and a path to close.
Pilot skill floor: high
No-API allowed: no
Light-model allowed: yes
### Policy: Drown In The Loch Mode And Timing
Priority: Medium
Decision families: interaction; priority
Cards: Drown in the Loch
Phase windows: stack interaction; main phase removal; combat
Runtime cues: action:cast Drown in the Loch; visible opponent graveyard count; stack or creature targets
Use when: `Drown in the Loch` is legal as counterspell or removal.
Avoid when: opponent graveyard size or target mana value makes the action fail according to visible engine legality.
Instructions: Use the counter mode on must-answer stack objects and removal mode on threats that cannot be profitably blocked. Let the engine determine legality; do not infer that hidden graveyard changes exist.
Pilot skill floor: medium
No-API allowed: no
Light-model allowed: yes
### Policy: Otawara Channel Gate
Priority: Medium
Decision families: interaction; mana
Cards: Otawara, Soaring City
Phase windows: main phase; combat; end step; stack-adjacent windows if legal
Use when: choosing whether to use `Otawara, Soaring City` as interaction rather than a land.
Avoid when: the deck still needs the land for double-blue or double-spell turns and the target is not creating immediate danger.
Instructions: Use `Otawara, Soaring City` to answer a resolved permanent that other cards cannot cleanly answer, to break a tempo-critical attack, or to clear a protected engine. Card text check required for exact target classes.
Pilot skill floor: medium
No-API allowed: no
Light-model allowed: yes
### Policy: Sideboard Plan Selection
Priority: High
Decision families: sideboard
Cards: Damping Sphere; Harbinger of the Seas; Surgical Extraction; Consign to Memory; Mystical Dispute; Stern Scolding; Toxic Deluge; Spell Snare; Fatal Push; Dismember; Kaito, Bane of Nightmares; Cling to Dust
Phase windows: between games
Runtime cues: prompt:sideboard; opponent archetype; revealed cards; game number
Use when: selecting sideboard changes after a completed game.
Avoid when: exact registered sideboard counts are not available from the engine or manifest.
Instructions: Add `Toxic Deluge` and `Stern Scolding` against low-curve creature pressure, `Mystical Dispute` against blue stack fights, `Damping Sphere` and `Harbinger of the Seas` against big-mana or land-structure decks, `Surgical Extraction` against graveyard dependency, and `Consign to Memory` when its text matches visible opposing card types or triggers. Reduce narrow or painful main-deck cards only when their targets were absent or too slow.
Pilot skill floor: high
No-API allowed: no
Light-model allowed: yes
### Policy: Deterministic Single Legal Pass
Priority: Low
Decision families: priority
Cards: none
Phase windows: any priority window
Runtime cues: action:pass priority
Use when: the current legal action list contains exactly one action and that action text is `pass priority` or an equivalent engine pass action.
Avoid when: any cast, activate, attack, block, target, selection, payment, or sideboard action is also legal.
Instructions: Submit the pass action when it is the only legal action exposed by the rules engine.
