# Strategy Specifications
## Deck Name And Archetype
Simic Merfolk is a Pioneer Simic aggro-tempo tribal deck built to develop early Merfolk, convert tribal density into pressure, and keep the opponent off clean stabilization with disruptive creatures, countermagic-adjacent bodies, activated lands, and selective permanent interaction. The registered list is 60 main-deck cards and 15 sideboard cards, matching the supplied active Pioneer validation contract and passing the stated main/sideboard size requirements.

- Format: Pioneer.
- Registered main deck: 60 cards.
- Registered sideboard: 15 cards.
- Strategy name: Simic Merfolk.
- Archetype tags: aggro; tempo; tribal; counters.
- Deck status: hybrid stock/rogue, because the shell uses recognizable Simic Merfolk pressure cards such as Kumena, Tyrant of Orazca, Vodalian Hexcatcher, Deeproot Pilgrimage, Mutavault, Cavern of Souls, Tishana's Tidebinder, and Floodpits Drowner, while also registering distinctive one-copy or newer role cards such as Champions of the Shoal, Mindspring Merfolk, Disruptor of Currents, and main-deck Haywire Mite.

The primary runtime role is proactive tempo rather than pure control: lead with early board presence, increase damage through Merfolk density and counters, force opponents to answer multiple must-respect permanents, and spend interaction to preserve pressure or stop a game-swinging stabilizer. The agent should treat visible legal actions and current board state as binding; this guide gives preferences only after the rules engine exposes a legal action.

The mana base is Simic with a real colorless/utility tension: Breeding Pool, Botanical Sanctum, Barkchannel Pathway, Island, Cavern of Souls, Boseiju, Who Endures, Otawara, Soaring City, and Mutavault do not all produce the same colors for every spell or ability. The agent should protect early blue-green access for Cenote Scout, Deeproot Pilgrimage, Vodalian Hexcatcher, Floodpits Drowner, Tishana's Tidebinder, Kumena, Tyrant of Orazca, Formidable Speaker, Harmonized Trio, Champions of the Shoal, Mindspring Merfolk, and Disruptor of Currents when legal options expose colored costs. Cavern of Souls can be strategically important for resolving Merfolk through permission, but its exact runtime use must follow Forge legality and visible action text.

The creature plan is tribal pressure with layered utility: Cenote Scout and Formidable Speaker are expected early development cards; Vodalian Hexcatcher and Tishana's Tidebinder are tempo-interaction bodies; Floodpits Drowner supplies pressure plus disruption if its legal actions appear; Kumena, Tyrant of Orazca and Deeproot Pilgrimage are engine cards that reward maintaining Merfolk on board; Mutavault counts as an important creature-land pressure source when animation is legal. Card text check required for Champions of the Shoal, Mindspring Merfolk, Disruptor of Currents, Formidable Speaker, Harmonized Trio, and Floodpits Drowner before relying on any non-obvious tactical text beyond legal actions exposed by the engine.

The noncreature and artifact plan is light but important: Agatha's Soul Cauldron is a counters/ability engine candidate rather than a generic removal spell, Deeproot Pilgrimage is the defining go-wide engine, and Haywire Mite is a narrow interactive permanent that becomes more important against visible artifact or enchantment threats. The sideboard confirms a tempo posture with Mystical Dispute, Change the Equation, Spell Pierce, Spell Snare, Fading Hope, March of Swirling Mist, Damping Sphere, Stock Up, Mistcaller, and additional Haywire Mite.

Opponent information status is unknown at deck-registration time. The agent must not infer hidden cards, sideboard configuration, or exact opposing interaction from archetype labels alone; it may reason from public game actions, revealed cards, known matchup metadata if supplied later, visible mana, graveyards, exile, battlefield, stack, and legal action prompts.

## Thesis
Simic Merfolk assembles early Merfolk density, a scaling tribal board, and tempo disruption that turns small creatures into a lethal battlefield before the opponent can stabilize. The deck wants a one- or two-mana creature start, a follow-up engine or payoff such as Deeproot Pilgrimage, Vodalian Hexcatcher, Kumena, Tyrant of Orazca, Agatha's Soul Cauldron, or Harmonized Trio, and enough blue-green mana discipline to keep casting threats while leaving disruption lines available when the rules engine exposes them.

The deck wins by making the opponent answer too many board-relevant objects at once. Cenote Scout, Formidable Speaker, Floodpits Drowner, Vodalian Hexcatcher, Tishana's Tidebinder, Kumena, Tyrant of Orazca, Harmonized Trio, Deeproot Pilgrimage tokens, counters, Agatha's Soul Cauldron pressure, and Mutavault all contribute to damage; the agent should value lines that preserve a growing board while forcing awkward blocks, taxed spells, or delayed stabilizers.

The deck is not trying to play hard control, ramp into a single oversized spell, or wait for perfect information. It should not pass early turns with legal creature development unless the visible board or stack creates a specific reason to hold interaction. It should not treat every counter-style action as mandatory; interaction is strongest when it protects pressure, stops sweepers or stabilizing permanents, interrupts combo execution, or converts a close race.

The highest priority is to maintain pressure without throwing away the engine. Favor legal actions that add Merfolk before speculative noncreature setup when the board is empty, protect Deeproot Pilgrimage and Kumena, Tyrant of Orazca once they are generating material, use Vodalian Hexcatcher and Tishana's Tidebinder to deny high-impact opposing turns, and keep Mutavault as both a land and a threat until animation is clearly useful.

Card text check required for Champions of the Shoal, Mindspring Merfolk, Disruptor of Currents, Formidable Speaker, Floodpits Drowner, and Harmonized Trio before relying on any exact non-obvious ability. Runtime legal action text may still be used directly when Forge exposes the action, target, cost, and resulting prompt.

## Role Package
- Threats: Cenote Scout, Formidable Speaker, Vodalian Hexcatcher, Floodpits Drowner, Tishana's Tidebinder, Kumena, Tyrant of Orazca, Harmonized Trio, and Mutavault are the main pressure bodies. Prioritize early threat density over holding creatures for marginal later value unless a visible sweeper, combat blowout, or known stack interaction changes the risk.

- Payoffs: Deeproot Pilgrimage rewards repeated Merfolk development and tapping patterns; Kumena, Tyrant of Orazca rewards keeping multiple Merfolk alive; Vodalian Hexcatcher rewards tribal density while adding disruption; Agatha's Soul Cauldron rewards creature graveyards and +1/+1 counter synergies when its legal actions are exposed. Treat Harmonized Trio as a payoff only to the extent confirmed by visible action text or verified card text.

- Engines: Deeproot Pilgrimage is the primary go-wide engine, Kumena, Tyrant of Orazca is the primary board-to-cards-or-counters engine, and Agatha's Soul Cauldron is the graveyard/counter/ability engine. Protect active engines when they are already converting board presence into material, but do not keep slow hands that contain engines without early creatures or castable mana.

- Velocity: Cenote Scout and Kumena, Tyrant of Orazca are the main-deck cards most likely to improve card flow or board quality, subject to exact legal prompts. Mindspring Merfolk is a one-copy velocity candidate, but card text check required. Stock Up is the sideboard card for matchups where raw resources and selection matter more than maximum speed.

- Interaction: Vodalian Hexcatcher, Tishana's Tidebinder, Floodpits Drowner, Haywire Mite, Boseiju, Who Endures, Otawara, Soaring City, and Agatha's Soul Cauldron form the main-deck disruption package. Sideboard interaction expands with Mystical Dispute, Change the Equation, Fading Hope, Damping Sphere, Spell Pierce, March of Swirling Mist, Spell Snare, Mistcaller, and additional Haywire Mite.

- Protection: Cavern of Souls protects Merfolk casting from counter-heavy opponents when named and used legally; Vodalian Hexcatcher protects the board by threatening noncreature spells; Tishana's Tidebinder protects tempo by stopping activated or triggered abilities when legal. March of Swirling Mist is the sideboard flexible protection card when a visible removal, combat, or sweeper sequence makes phasing tactically valuable.

- Recursion: The deck has no normal recursion plan. Agatha's Soul Cauldron can convert graveyard creatures into counters or abilities if legal actions permit, but the agent should not assume a destroyed creature will return to the battlefield.

- Mana: Breeding Pool, Botanical Sanctum, Barkchannel Pathway, Cavern of Souls, Island, Boseiju, Who Endures, Otawara, Soaring City, and Mutavault must support both early colored spells and utility-land pressure. Preserve blue-green access for creature curves; spend Mutavault as a creature only when the attack, block, or extra Merfolk body is worth the temporary mana loss.

- Sideboard modules: Mystical Dispute, Change the Equation, Spell Pierce, and Spell Snare are stack-tempo upgrades; Haywire Mite and Damping Sphere attack artifacts, enchantments, or mana engines; Fading Hope and March of Swirling Mist shift combat and tempo math; Stock Up supports grindy games; Mistcaller covers creature-entry or graveyard-adjacent strategies when its exact text is relevant.

## Primary Win Conditions
- Go-wide Merfolk pressure is the default kill. Setup requires an early creature such as Cenote Scout or Formidable Speaker, a density payoff such as Deeproot Pilgrimage or Kumena, Tyrant of Orazca, and enough lands to keep adding creatures without skipping combat. Execute by adding Merfolk before spending mana on low-impact interaction, converting Deeproot Pilgrimage triggers and Kumena, Tyrant of Orazca activations only when legal prompts show a board-advancing line, and attacking when blocks are unfavorable for the opponent. Prioritize this path against slower starts, spot-removal decks with limited sweepers visible, and opponents spending early turns on setup rather than board presence.

- Tempo-disruption pressure wins by pairing a fast clock with stack or ability denial. Setup requires battlefield pressure from Vodalian Hexcatcher, Floodpits Drowner, Tishana's Tidebinder, Mutavault, or other Merfolk, then holding open interaction only when the visible stack, mana, or matchup context makes a stabilizing action likely. Execute by countering, taxing, tapping, binding, or otherwise disrupting only legal high-impact opposing actions; do not spend Vodalian Hexcatcher or Tishana's Tidebinder on low-impact plays if the current attack already pressures life total. Prioritize this path when the opponent is near a stabilizing turn, when their visible mana suggests a key spell or ability, or when one more protected attack step likely decides the game.

- Engine-overload wins by making each Merfolk body worth more than one card or combat step. Setup requires Deeproot Pilgrimage, Kumena, Tyrant of Orazca, or Agatha's Soul Cauldron plus multiple creatures or graveyard objects that Forge exposes as legal resources. Execute by preserving the engine if it is already creating tokens, cards, counters, or ability pressure, then force the opponent to answer both the engine and the creature battlefield. Prioritize this path in grindy games, against removal-heavy opponents, or when the first wave of creatures is unlikely to end the game alone. Card text check required before relying on exact Harmonized Trio, Floodpits Drowner, Formidable Speaker, Champions of the Shoal, Mindspring Merfolk, or Disruptor of Currents functionality beyond legal action text.

- Counter-scaled combat wins when small bodies become too large or too numerous to trade profitably. Setup uses Cenote Scout, Agatha's Soul Cauldron, Kumena, Tyrant of Orazca, Harmonized Trio, and any visible +1/+1 counter lines the rules engine presents. Execute by distributing counters or growth effects toward creatures that can attack safely, dodge visible damage thresholds, or unlock legal abilities; avoid placing all pressure on one removable body unless lethal or forced. Prioritize this path when board stalls make raw creature count less important than attack quality.

## Secondary Win Conditions
- Mutavault is the main fallback threat when creatures are removed or sweepers are suspected. Use it as a land while curving out, then animate only when the legal attack, block, or extra Merfolk body materially improves the turn. Preserve Mutavault against open removal unless damage, Kumena, Tyrant of Orazca support, or Deeproot Pilgrimage synergy is worth risking the land.

- Single-threat tempo can win when one or two creatures are enough and the rest of the hand protects the clock. Vodalian Hexcatcher, Tishana's Tidebinder, Floodpits Drowner, and sideboard counterspells after boarding can turn a modest board into a race win by delaying the opponent for one or two turns. Use this path when committing extra creatures into a visible or strongly implied sweeper is worse than attacking and passing with interaction.

- Agatha's Soul Cauldron can become a late-game pressure and utility engine if legal exiling, counter placement, or granted-ability actions are exposed. Treat it as a secondary plan, not a reason to keep creature-light openers. Use it to convert dead creatures into board relevance when the graveyard is public and the action text clearly identifies the card or ability being used.

- Utility disruption can create virtual damage by removing blockers, disabling stabilizers, or forcing awkward timing. Haywire Mite, Boseiju, Who Endures, Otawara, Soaring City, Tishana's Tidebinder, Floodpits Drowner, and Vodalian Hexcatcher should be aimed at permanents, abilities, or spells that stop attacks or swing races, not at generic inconveniences.

## Emergency Lines
- Behind on life, stabilize before maximizing damage. Favor legal blocks that preserve key engines, tap or bounce the largest immediate attacker when Floodpits Drowner or Otawara, Soaring City permits, and use interaction to buy an attack step only if the crack-back is survivable.

- Behind on board, rebuild with bodies before speculative engines. Cast Merfolk that affect combat, animate Mutavault defensively only when losing the land is acceptable, and use Kumena, Tyrant of Orazca or Deeproot Pilgrimage only if the legal line creates blockers or card flow quickly enough.

- Behind on cards, shift toward repeatable sources and high-impact trades. Preserve Kumena, Tyrant of Orazca, Deeproot Pilgrimage, Agatha's Soul Cauldron, and post-board Stock Up when available; avoid sacrificing Vodalian Hexcatcher for a marginal spell unless that spell would otherwise end the game.

- Behind on mana, protect colored access and stop using Mutavault aggressively. Sequence Breeding Pool, Botanical Sanctum, Barkchannel Pathway, Cavern of Souls, Island, Boseiju, Who Endures, and Otawara, Soaring City to cast spells first; channel or utility-land actions should wait unless the target is decisive.

- When engines are removed, become a creature-land tempo deck. Keep attacking with remaining Merfolk, use Mutavault to maintain pressure, and spend interaction to prevent the opponent's first stabilizing recovery rather than trying to recreate a lost engine immediately.

- Against combo or lock pressure, prioritize disruption over extra damage when the visible legal action stops the decisive turn. Vodalian Hexcatcher, Tishana's Tidebinder, Haywire Mite, Boseiju, Who Endures, Otawara, Soaring City, and sideboard stack interaction should be saved for the action that matters if waiting does not lose the current race.

## Resource Model
- Life is a race resource, not a shield to protect at all costs. Spend life from Breeding Pool when it enables a one- or two-mana start that adds pressure or preserves interaction; avoid unnecessary shock damage when the hand already curves through Botanical Sanctum, Barkchannel Pathway, Cavern of Souls, Island, or Mutavault.

- Hand size converts into tempo when each card either adds a Merfolk, protects an attack step, or disrupts a stabilizer. Do not hoard cheap creatures if Deeproot Pilgrimage, Kumena, Tyrant of Orazca, or Harmonized Trio rewards a wide battlefield through legal action text; do hold Vodalian Hexcatcher, Tishana's Tidebinder, or sideboard counterspells when the opponent's next visible action is more important than one extra body.

- Board presence is the deck's core currency. Prioritize early Merfolk bodies from Cenote Scout, Formidable Speaker, Vodalian Hexcatcher, Floodpits Drowner, and Mutavault because they enable attacks, Deeproot Pilgrimage triggers, Kumena, Tyrant of Orazca activations, Vodalian Hexcatcher sacrifices, and any counter-based scaling Forge exposes.

- Mana is valuable when it changes the current combat or stack exchange. Curve out first, then convert spare mana into Agatha's Soul Cauldron actions, Mutavault animation, utility-land channel abilities, sideboard interaction, or legal activated abilities only when those choices advance damage, preserve a key permanent, or stop a decisive opposing action.

- Graveyard resources matter mainly through Agatha's Soul Cauldron and any legal ability text the engine exposes. Exile a creature card only when the named target and resulting legal abilities are visible; do not assume a graveyard creature grants a useful ability without rules-engine confirmation. Opponent graveyards matter for opposing recursion, delve-like pressure, and sideboard hate decisions; use Mistcaller, Damping Sphere, Haywire Mite, or counterspells only when their legal text matches the threat.

- Exile is a commitment zone for Agatha's Soul Cauldron and temporary permission effects. Treat exiling your own creature as spending future recursion flexibility for current counter or ability value; treat exiling opposing cards as disruption only if the legal action text confirms the relevant object and effect.

- Lands are both mana and threats. Mutavault should be preserved as colored-mana-neutral pressure and as a Merfolk body, while Boseiju, Who Endures and Otawara, Soaring City should be held when their channel action can answer a permanent, blocker, or tempo swing that ordinary combat cannot beat.

- Sacrifice fodder is real because Vodalian Hexcatcher can turn extra Merfolk into stack pressure. Spend tokens, redundant bodies, or low-impact creatures before key engines when the legal counter action stops a high-impact noncreature spell; avoid sacrificing the creature that keeps lethal, blocks survival, or enables Kumena, Tyrant of Orazca this turn.

- Tempo is the deck's translation layer between small cards and wins. A turn that taps, counters, taxes, bounces, or disables the opponent's best stabilizer while attacking is often worth more than drawing or building an engine, but only if the visible board shows that the next attack matters.

- Information is partial and must remain conditional. Use public mana, revealed cards, stack contents, known graveyards, and previous decisions to choose interaction timing; never name or play around hidden cards as certain unless Veles shows them as revealed information.

- Sideboard bullets should solve specific resource failures. Add Stock Up when hand count matters, Haywire Mite when artifacts or enchantments are legal targets, Damping Sphere when mana development or spell chaining must be constrained, Mistcaller when creature entry from noncasting patterns matters, and cheap permission when the matchup hinges on the stack.

## Mana Guide
- Build opening mana around green and blue access by turn two. Keep hands that can cast early creatures plus either Deeproot Pilgrimage, Vodalian Hexcatcher, Floodpits Drowner, or Tishana's Tidebinder on time; mulligan or downgrade hands where Mutavault, Boseiju, Who Endures, Otawara, Soaring City, or color-mismatched lands prevent the first two spells.

- Sequence untapped colored lands before utility lands when curving out. Botanical Sanctum is best early, Breeding Pool should enter untapped when it unlocks a meaningful play, Barkchannel Pathway should choose the side that covers missing colors, and Cavern of Souls should name Merfolk when the hand needs creature mana or protection from counterspells.

- Use Mutavault as a land before using it as a creature. Animate it only after confirming that the remaining mana still supports the legal spell, counterspell, or activated ability needed this turn; do not trade Mutavault in combat unless the exchange protects life, enables lethal pressure, or the land is no longer needed for future turns.

- Treat Cavern of Souls mana as creature-specific. It helps cast Merfolk through permission, but it may not pay for Agatha's Soul Cauldron, Deeproot Pilgrimage, sideboard counterspells, channel costs, or noncreature interaction unless Forge presents a legal payment. Preserve generic or colored non-Cavern sources for those spells.

- Delay Boseiju, Who Endures and Otawara, Soaring City as lands when their channel action is more valuable than the extra mana. Play them early only if the hand cannot otherwise function, the matchup is too fast to hold utility, or the legal curve requires the land drop.

- Play lands before card-draw or selection when the current turn needs mana now. Hold a land until after draw or selection only when landfall is irrelevant, the turn has no immediate mana bottleneck, and seeing the new card could change which land to play, such as choosing between Mutavault pressure and colored access.

- Shock Breeding Pool when the untapped mana creates a concrete battlefield or stack advantage. Let it enter tapped when the turn is already planned, life is under pressure, or the only extra use is speculative interaction without a visible target.

- Keep mana open when the opponent's next play matters more than another body. This includes holding Vodalian Hexcatcher, Tishana's Tidebinder, Mystical Dispute, Change the Equation, Spell Pierce, Spell Snare, Fading Hope, March of Swirling Mist, or Otawara, Soaring City when the visible board or matchup context points to a decisive spell, ability, attack, or blocker.

- Tap creatures for Kumena, Tyrant of Orazca or Deeproot Pilgrimage-related lines only after checking combat and interaction needs. A tapped Merfolk may create value, but it may also remove a blocker, reduce attack pressure, or eliminate Vodalian Hexcatcher sacrifice coverage.

- Spend sideboard mana precisely. Mystical Dispute, Change the Equation, Spell Pierce, and Spell Snare require leaving the correct colors or generic mana available; Stock Up asks for a slower turn; Haywire Mite and Damping Sphere can change sequencing because they use early mana without always adding attack power.

## Mulligan Guide
- Strong keep: keep two or three lands with both colors and a turn-one creature or legal one-mana play, especially Cenote Scout or Formidable Speaker, plus Deeproot Pilgrimage, Vodalian Hexcatcher, Floodpits Drowner, or Kumena, Tyrant of Orazca as the next play. Botanical Sanctum, Breeding Pool, Barkchannel Pathway, and Cavern of Souls are premium when they cast the first two spells; Mutavault is a bonus only after colored mana is secured.

- Strong keep: keep hands that curve early Merfolk into Deeproot Pilgrimage when the mana casts the creature first and the enchantment second. This hand can win through removal by turning attacks, taps, and Kumena, Tyrant of Orazca activations into extra bodies.

- Medium keep: keep two-land hands with Agatha's Soul Cauldron only when they also have early creatures and at least one clear pressure or tempo card. Agatha's Soul Cauldron is powerful later, but a hand that only sets up the artifact without a battlefield is too slow for an aggro-tempo seat.

- Medium keep: keep interaction-heavy hands with Vodalian Hexcatcher or Tishana's Tidebinder when the matchup is expected to hinge on noncreature spells, activated abilities, or triggered abilities. On the play, these hands need a threat first; on the draw, they can be acceptable if the first legal interaction window is likely decisive.

- Risky keep: one-land hands are keepable only with Botanical Sanctum, Breeding Pool, or Barkchannel Pathway plus multiple castable one-mana or two-mana plays and no reliance on Mutavault as colored mana. Ship one-land hands with Kumena, Tyrant of Orazca, Tishana's Tidebinder, Harmonized Trio, or multiple three-mana spells unless the engine shows an unusually low-curve legal hand.

- Automatic ship: ship hands with no colored land, hands where Mutavault plus Boseiju, Who Endures or Otawara, Soaring City cannot cast early spells, and hands with only Agatha's Soul Cauldron, Deeproot Pilgrimage, and reactive cards but no creature. Ship five-land hands without Mutavault pressure, channel utility, or a strong card-advantage engine.

- Matchup-dependent keep: keep Haywire Mite in the opener only when opposing artifacts or enchantments are expected or visible from revealed information; otherwise treat the main-deck copy as a low-pressure card. Keep Boseiju, Who Endures or Otawara, Soaring City more highly when those channel effects answer the matchup's public permanent or tempo pattern.

- Play/draw adjustment: on the play, prefer threat plus Deeproot Pilgrimage or lord-style pressure before holding up interaction. On the draw, upgrade Vodalian Hexcatcher, Tishana's Tidebinder, Floodpits Drowner, and cheap sideboard counters because the opponent can present the first decisive spell or ability before your third turn.

- Trap hand: do not keep a hand because it contains Cavern of Souls and several noncreature spells. Cavern of Souls should name Merfolk for creature development, but it may fail to cast Deeproot Pilgrimage, Agatha's Soul Cauldron, sideboard counters, or channel effects when those are the actual hand.

- Trap hand: do not keep a hand that requires unknown text from Champions of the Shoal, Mindspring Merfolk, Disruptor of Currents, Floodpits Drowner, Formidable Speaker, or Harmonized Trio to function. Card text check required; rely on Veles legal actions and visible costs before assigning those cards a specific opener role.

## Turn Arc
- Turn 1: deploy the first Merfolk or best legal one-mana creature when possible, usually Cenote Scout or Formidable Speaker if the engine confirms the play. Prioritize untapped green or blue access over Mutavault, and choose Barkchannel Pathway for the missing color that lets turn two happen.

- Turn 1 deviation: play tapped Breeding Pool only when there is no meaningful one-mana play and the turn-two sequence remains intact. Play Mutavault early only when colored mana is already covered or no colored spell can be cast next turn.

- Turn 2: establish the pressure engine with Deeproot Pilgrimage when a creature is already present, or add Vodalian Hexcatcher or Floodpits Drowner when board presence and tempo matter more than enchantment setup. Hold Vodalian Hexcatcher instead of casting it only when flash timing or the sacrifice-counter line can stop a visible or strongly implied noncreature spell.

- Turn 2 deviation: cast Agatha's Soul Cauldron when the board already has a creature, a graveyard target exists or is likely to exist, and the artifact will convert into counters or abilities before the opponent stabilizes. Do not take turn two off for Agatha's Soul Cauldron against fast pressure unless the legal action immediately improves blocking, racing, or a future activated-ability line.

- Turn 3: use Kumena, Tyrant of Orazca as the preferred engine when two or more Merfolk are already present and the opponent is not clearly about to punish a tap-out. Use Tishana's Tidebinder instead when a visible activated or triggered ability matters, or when leaving flash interaction up is better than adding sorcery-speed pressure.

- Turn 3 deviation: animate Mutavault only if the attack or tap count changes the turn and the remaining mana still supports priority decisions. When Deeproot Pilgrimage is active, attack or tap nontoken Merfolk before spending creatures on optional value so the token trigger is not missed.

- Turns 4-5: convert board width into damage, Kumena, Tyrant of Orazca activations, Vodalian Hexcatcher protection, and Mutavault attacks. Sequence Harmonized Trio, Champions of the Shoal, Mindspring Merfolk, and Disruptor of Currents according to exact legal text; Card text check required for any assumed pump, draw, tempo, or counter ability.

- Turns 4-5 deviation: preserve Boseiju, Who Endures and Otawara, Soaring City when the opponent's visible blocker, artifact, enchantment, land, or key permanent is the obstacle to lethal pressure. Spend them as lands only when missing mana would prevent multiple relevant legal actions.

- Late game: prioritize board states that keep attacking while retaining one interaction layer. Agatha's Soul Cauldron, Kumena, Tyrant of Orazca, Mutavault, Deeproot Pilgrimage tokens, and flash interaction let the deck recover from removal, but each activation must be checked against lethal attacks, available blockers, and stack threats.

- Late-game emergency: use Tishana's Tidebinder, Vodalian Hexcatcher sacrifices, Haywire Mite, Boseiju, Who Endures, Otawara, Soaring City, or sideboard interaction before adding another creature when the visible opposing action would otherwise end the game or erase the battlefield. Race only when the next attack math is better than the defensive line shown by Veles.

## Card Roles
- Agatha's Soul Cauldron: use Agatha's Soul Cauldron as a late-scaling engine, graveyard interaction piece, and +1/+1 counter distributor, not as a turn-two do-nothing when the battlefield is empty. Prioritize it when a creature card in any graveyard has an activated ability that matters to the current board, when putting a counter enables future ability sharing, or when exiling an opposing graveyard card denies recursion; do not assume a specific stolen ability is useful until Veles shows the exiled card and legal activations.

- Deeproot Pilgrimage: treat Deeproot Pilgrimage as the main width engine once at least one nontoken Merfolk can tap or attack. Cast it before routine attacks when the turn will tap a nontoken Merfolk and the token matters for Kumena, Tyrant of Orazca, Vodalian Hexcatcher sacrifice fuel, blocking, or racing; delay it when the opponent is applying immediate pressure and the same mana must add a body or hold interaction.

- Vodalian Hexcatcher: use Vodalian Hexcatcher as both pressure and protection, with flash timing upgraded against noncreature spell decks. Cast it proactively when the anthem effect changes attacks, blocks, or a clock; hold it when sacrificing a Merfolk to tax a visible noncreature spell is likely to decide the turn. Do not sacrifice an essential attacker, blocker, Kumena tap body, or only Deeproot Pilgrimage trigger source unless the spell being countered is more important than the board loss.

- Kumena, Tyrant of Orazca: use Kumena, Tyrant of Orazca as the deck's highest-value board engine when the board already contains multiple Merfolk. Prefer drawing cards with three Merfolk when racing is stable or interaction is needed, prefer counters with five Merfolk when the board can safely tap down, and use unblockable pressure only when it changes damage math or pushes a key attacker through. Do not tap away blockers into lethal crack-back.

- Cenote Scout: use Cenote Scout as a one-mana Merfolk body that smooths early development and starts tribal synergies. Keep hands with Cenote Scout more often because it supplies early pressure, Deeproot Pilgrimage setup, Kumena tap material, and sacrifice fodder for Vodalian Hexcatcher; let Veles confirm explore outcomes before planning around a land draw, counter, or graveyard card.

- Floodpits Drowner: treat Floodpits Drowner as an early Merfolk tempo card whose exact tactical text must be checked at runtime. Card text check required; prioritize it when Veles shows a legal action that advances board presence while interacting with a blocker, attacker, graveyard, or spell timing, and avoid assuming it removes a creature permanently unless the engine action explicitly says so.

- Tishana's Tidebinder: use Tishana's Tidebinder as flash interaction for activated or triggered abilities and as a Merfolk body when the opponent gives no valuable window. Hold up three mana against decks with decisive permanents, enters-the-battlefield triggers, channel abilities, planeswalker-style activations, graveyard triggers, or combo triggers; cast it as pressure only when passing wastes tempo and no relevant ability is likely before your next turn.

- Formidable Speaker: use Formidable Speaker as a primary early attacker and tribal curve piece, but verify exact text before assigning pump, token, counter, or evasion roles. Card text check required; cast it early when legal mana supports it and the hand needs a body for Deeproot Pilgrimage, Kumena, Tyrant of Orazca, or Vodalian Hexcatcher.

- Harmonized Trio: use Harmonized Trio as a later pressure or synergy card only after Veles confirms its legal text and role. Card text check required; prioritize it when it increases board density, counters, damage, or Merfolk count more than holding flash interaction, and avoid keeping slow hands that rely on Harmonized Trio before knowing whether the rest of the curve functions.

- Champions of the Shoal: use Champions of the Shoal as a one-of role card whose exact text must be verified before committing a key turn. Card text check required; treat it as a possible pressure or synergy payoff, but do not tap out for it over Kumena, Tyrant of Orazca, Tishana's Tidebinder, or lethal combat unless Veles shows a clearly relevant legal action.

- Mindspring Merfolk: use Mindspring Merfolk as a one-of utility or value card only when the engine confirms its action text. Card text check required; prefer it in longer games if it provides card flow, counters, or board development, but do not assume it fixes a weak hand or stabilizes combat without visible legal proof.

- Haywire Mite: use Haywire Mite as main-deck insurance against artifacts and enchantments, with incidental body value secondary. Keep or deploy it highly when a visible artifact or enchantment must be answered, when Agatha's Soul Cauldron can later use it as graveyard material if relevant, or when one extra blocker/sacrifice body matters; do not spend it into removal or combat if the matchup's key target is likely to appear soon.

- Disruptor of Currents: use Disruptor of Currents as a one-of tactical card only after checking its exact legal actions. Card text check required; if Veles shows a tempo, tapping, counter, or combat-relevant action, compare it against adding pressure or holding interaction before spending mana.

- Mutavault: treat Mutavault as both land and Merfolk threat, but never count it as colored mana for early spells. Animate Mutavault when it adds lethal pressure, triggers tribal/tap synergies, supplies Kumena, Tyrant of Orazca material, or dodges sorcery-speed removal; leave it unanimated when the mana is needed for Vodalian Hexcatcher, Tishana's Tidebinder, Agatha's Soul Cauldron, or sideboard interaction.

- Cavern of Souls: use Cavern of Souls primarily to force Merfolk through permission and stabilize creature-heavy hands. Name Merfolk when casting the deck's creature core matters; remember it does not reliably cast Agatha's Soul Cauldron, Deeproot Pilgrimage, or sideboard counters, so hands depending on those cards still need Botanical Sanctum, Breeding Pool, Barkchannel Pathway, Island, Boseiju, Who Endures, or Otawara, Soaring City as appropriate.

- Boseiju, Who Endures: preserve Boseiju, Who Endures as interaction when the opponent's visible artifact, enchantment, or nonbasic land is strategically important. Play it as a land only when colored development or multiple spells matter more than the channel effect.

- Otawara, Soaring City: preserve Otawara, Soaring City as a tempo answer to a visible permanent when bouncing that permanent unlocks lethal, protects from a key threat, or breaks a stalled board. Play it as a land when the hand otherwise misses blue mana or when the bounce mode has no credible target soon.

- Breeding Pool, Botanical Sanctum, Barkchannel Pathway, Island: prioritize these lands for untapped blue-green development because the deck often needs to curve creature into Deeproot Pilgrimage or hold flash interaction. Choose Barkchannel Pathway's face according to the missing color in the current hand, not abstract color balance.

## Interaction Priorities

- Priority: spend Tishana's Tidebinder on activated or triggered abilities that would beat the board, not on minor value. Highest targets are combo triggers, sweep-adjacent triggers, sacrifice/value engines, graveyard payoff triggers, decisive enters-the-battlefield abilities, planeswalker-style activations, channel abilities, or removal-trigger chains that would erase Kumena, Tyrant of Orazca, Deeproot Pilgrimage, Agatha's Soul Cauldron, or a lethal attack. Use it as a flash Merfolk only when no relevant window is likely and pressure matters more than holding three mana.

- Priority: use Vodalian Hexcatcher to protect a developed board from noncreature interaction when the sacrificed Merfolk is less important than the spell being taxed. Counter sweepers, combo spells, hard removal aimed at Kumena, Tyrant of Orazca, and spells that break a lethal or near-lethal turn before taxing cantrips, setup, or redundant removal. Avoid sacrificing the only Merfolk that enables Deeproot Pilgrimage triggers, Kumena activations, or a critical blocker unless the stack spell decides the game.

- Priority: use Haywire Mite and Boseiju, Who Endures on artifacts, enchantments, or nonbasic lands that stop attacks, enable combo, blank counters, or dominate combat. Ignore low-impact artifacts and enchantments while the Merfolk board is already winning; preserve these answers for hate permanents, prison pieces, graveyard engines, large artifact threats, or enchantments that invalidate creature combat.

- Priority: use Otawara, Soaring City and Fading Hope-style bounce effects as tempo, protection, or lethal enablers rather than generic removal. Bounce the blocker that unlocks lethal, the large attacker that creates a survival problem, the permanent carrying counters or auras, or the stack-adjacent threat that must be reset. Do not spend bounce on a creature that will be recast profitably unless the gained turn converts into damage, Kumena cards, or a protected setup.

- Priority: protect Kumena, Tyrant of Orazca and Deeproot Pilgrimage before protecting replaceable early attackers. Kumena converts excess Merfolk into cards, counters, or unblockable pressure; Deeproot Pilgrimage turns repeated Merfolk casts into board width. Let removal hit Cenote Scout, Formidable Speaker, or Mutavault more readily when the engine pieces survive and the board still functions.

- Priority: bait interaction with lower-commitment threats before exposing Kumena, Tyrant of Orazca, Agatha's Soul Cauldron, or a key sideboard answer. Against open mana, lead with Cenote Scout, Formidable Speaker, Deeproot Pilgrimage, or Mutavault activation when losing that play is acceptable; commit Kumena when Cavern of Souls, Vodalian Hexcatcher, Spell Pierce, Mystical Dispute, or board redundancy changes the exchange.

- Archetype shift: against control, value counters and flash timing over early trades. Hold Vodalian Hexcatcher and Tishana's Tidebinder for sweepers, planeswalker-style activations, card-advantage engines, and removal on Kumena; force action with Mutavault and Deeproot Pilgrimage without overcommitting all creatures into a single reset.

- Archetype shift: against creature aggro, interact with combat math first and stack value second. Bounce or tap the creature that creates lethal pressure, trade spare Merfolk before life falls too low, and use Kumena counters only when tapping the team will not expose lethal crack-back.

- Archetype shift: against combo, prioritize disruption over damage that is not lethal. Keep mana open for Vodalian Hexcatcher, Tishana's Tidebinder, Spell Pierce, Change the Equation, Mystical Dispute, Spell Snare, or Damping Sphere when boarded; ignore medium blockers if the opponent's visible line depends on a spell, trigger, graveyard, artifact, or activated ability.

## Combat And Trading Rules

- Attack discipline: attack when damage advances a two-turn clock or forces blocks that preserve the Merfolk engine. Favor wide attacks after Deeproot Pilgrimage has created extra bodies, after Kumena, Tyrant of Orazca can grant unblockable pressure, or when Mutavault adds damage without costing interaction that must be held.

- Engine preservation: do not tap all Merfolk to Kumena, Tyrant of Orazca if the resulting shield drop lets the opponent attack for lethal or remove the only relevant blocker. Draw with three Merfolk when cards are needed and blocks remain safe; use the five-Merfolk counter mode when the counters immediately improve attacks, blocks, or survival; use unblockable mode when one attacker matters more than team development.

- Trade rule: trade replaceable bodies before trading engines. Cenote Scout, Formidable Speaker, Deeproot Pilgrimage tokens, animated Mutavault, and spare small Merfolk can trade to preserve life, protect Kumena, or keep a race favorable; avoid trading Vodalian Hexcatcher, Tishana's Tidebinder, or Kumena unless the exchange stops lethal, removes the opponent's best threat, or clears a decisive attack.

- Mutavault rule: animate Mutavault for attacks only when the land is not needed for interaction or a post-combat spell. Attack with Mutavault into open removal when mana remains functional afterward or the opponent is pressured into a bad block; hold it back when losing the land would strand Tishana's Tidebinder, Vodalian Hexcatcher tax mana, Agatha's Soul Cauldron activation plans, or sideboard interaction.

- Blocking rule: block early against fast red, prowess, vehicles, and creature decks once life approaches the danger zone. Around 10 or less life, preserve life over chip damage unless the return attack is lethal or near lethal; around 6 or less life, prioritize survival blocks and bounce/tap lines over developing new engines.

- Racing rule: race control and combo more aggressively than creature decks. Against low-board opponents, accept damage from small attackers if attacks plus Mutavault create a faster clock; against wide creature boards, keep enough blockers to avoid losing to a single pump, haste threat, or removal spell on the best blocker.

- Protection rule: use March of Swirling Mist defensively when phasing protects lethal damage next turn, saves Kumena or multiple Merfolk from removal, or blanks a combat step. Use it offensively only when removing blockers from combat creates lethal or a decisive attack; do not spend it as a cosmetic tempo play if the opponent can rebuild and the Merfolk board loses protection.

- Bounce-combat rule: use Fading Hope, Otawara, Soaring City, and any verified Floodpits Drowner or Disruptor of Currents action to change combat only when the target is observable and the result is concrete. Remove the largest blocker for lethal, reset a lethal attacker, interrupt a double-block, or protect a key creature from a bad trade; otherwise keep the card for a more decisive window.

- Counters-in-combat rule: value +1/+1 counters highest when they convert bad trades into wins or make sweep damage less effective. Agatha's Soul Cauldron and Kumena counters are strongest on evasive, repeatable, or protected bodies; spread counters when removal is likely, concentrate counters when one unblockable or protected threat can end the game.

- Ignore rule: do not block irrelevant utility creatures when the opponent is not pressuring life and the Merfolk attack is stronger. Force the opponent to answer your board unless their creature enables combo, mana, sacrifice value, or a lethal race that Veles shows through visible board state.

## Selection And Tutor Rules

- Selection rule: treat this deck as having no true tutor package unless Veles exposes a legal search action from a specific card. Most selection is pseudo-selection from explore, draw/filter effects, graveyard-exile choices, land sequencing, and visible action labels; never assume the library contains a missing card unless the rules engine reveals a legal candidate list.

- Cenote Scout rule: when Cenote Scout creates an explore or top-card decision, keep lands when the hand still needs a land drop, a second color, or mana to double-spell. Put nonlands into the graveyard only when the current hand already has enough mana and the card shown is lower impact than finding action, pressure, or interaction.

- Stock Up rule: Card text check required, so use Stock Up only according to the exact selection candidates Veles shows. In slow matchups, prioritize Kumena, Tyrant of Orazca, Deeproot Pilgrimage, Agatha's Soul Cauldron, Mutavault, and sideboard interaction; under pressure, prioritize immediately castable blockers, bounce, cheap interaction, or the land that unlocks two spells.

- Agatha's Soul Cauldron rule: choose graveyard-exile targets from visible graveyards only. Exile a creature card when its visible activated ability will matter on a countered creature, when denying the opponent's graveyard line matters, or when the +1/+1 counter changes combat; do not spend the activation on a random graveyard card while priority interaction or combat survival is more important.

- Kumena selection rule: use Kumena, Tyrant of Orazca as repeatable card selection only when tapping three Merfolk does not collapse attacks, blocks, or interaction shields. Draw when the hand is low on action or needs sideboard cards; use counters when the current board already attacks or blocks profitably; use unblockable when one large attacker or Mutavault-sized threat matters more than finding a new card.

- Land-drop rule: make early land drops to cast Merfolk on curve before preserving utility lands. Play Breeding Pool, Botanical Sanctum, Barkchannel Pathway, Island, or Cavern of Souls to support early creatures and interaction; hold Otawara, Soaring City or Boseiju, Who Endures only when colored mana is already stable and the channel effect is likely to be a real tempo or answer line.

- Cavern rule: choose Merfolk with Cavern of Souls when Veles offers that choice and the hand relies on resolving Cenote Scout, Vodalian Hexcatcher, Floodpits Drowner, Tishana's Tidebinder, Kumena, Tyrant of Orazca, Formidable Speaker, Harmonized Trio, Mindspring Merfolk, Disruptor of Currents, or Champions of the Shoal. Choose a different type only if the legal prompt and visible hand make that exact choice necessary.

- Mutavault rule: count Mutavault as both a land and a future Merfolk body when sequencing selection. Do not expose Mutavault to land loss if the next turn needs four mana for Tishana's Tidebinder, Kumena activation plus spell, Agatha's Soul Cauldron use, or sideboard interaction.

## Priority And Stack Rules

- Priority rule: pass only when the legal action list contains no action that improves the current clock, protects an engine, or stops a visible opposing line. This deck wins by spending mana efficiently, but it must still hold up Vodalian Hexcatcher, Tishana's Tidebinder, Otawara, Soaring City, Boseiju, Who Endures, Haywire Mite, Fading Hope, March of Swirling Mist, Spell Pierce, Spell Snare, Mystical Dispute, or Change the Equation when those cards line up with the visible threat.

- Vodalian Hexcatcher rule: use Vodalian Hexcatcher at instant speed when the flash body, lord effect, or sacrifice tax changes the exchange. Counter a noncreature spell when paying the tax is impossible or meaningfully disruptive; preserve Merfolk bodies when the spell is low impact, the opponent can pay, or sacrificing breaks Kumena, Tyrant of Orazca and Deeproot Pilgrimage pressure.

- Tishana's Tidebinder rule: hold Tishana's Tidebinder for activated or triggered abilities that materially change the game. Counter abilities tied to sweepers, planeswalker-style value, combo, graveyard payoff, removal, combat blowouts, or a permanent whose text matters afterward; let minor value triggers resolve when saving Tidebinder protects Kumena, Tyrant of Orazca or a decisive board.

- Stack discipline: spend sideboard counters on high-impact spells, not merely castable spells. Spell Pierce is best while the opponent is constrained on mana; Spell Snare and Change the Equation need exact legal targets; Mystical Dispute is strongest against blue stack fights or blue payoffs. If Veles does not expose a legal target, do not assume one exists.

- Bounce timing: use Otawara, Soaring City, Fading Hope, and verified Floodpits Drowner or Disruptor of Currents actions in response to removal, combat, or permanent-based engines when the visible result is concrete. Bounce the blocker that enables lethal, the attacker that creates lethal pressure, or the permanent whose reset buys a decisive turn.

- Haywire Mite timing: activate Haywire Mite only against a visible noncreature artifact or enchantment target that matters. Prioritize prison pieces, combo artifacts, damage engines, and removal-resistant enchantments over incidental value; keep the body when it blocks, carries counters, or supports Kumena math better than the exile action.

- March timing: use March of Swirling Mist as protection or lethal setup, not a generic tempo spell. Phase creatures to blank removal, survive combat, protect multiple Merfolk from a sweeper, or remove blockers for a winning attack; avoid spending it before the opponent commits the spell or combat line Veles actually shows.

- Graveyard timing: use Agatha's Soul Cauldron with priority when the opponent targets a graveyard card, when your own exiled creature ability becomes immediately useful, or when a +1/+1 counter changes combat before damage. Do not tap out for Cauldron value if stack interaction is required this turn.

- Trigger and payment rule: accept beneficial Deeproot Pilgrimage, counter, draw, or token-related choices only when Veles presents them as legal and they do not consume a resource needed for survival or interaction. Decline or delay optional actions that tap critical blockers, sacrifice key Merfolk, spend protected mana, or remove the ability to answer the current stack.

## Sideboard Map

- Sideboard principle: add cards only when their text lines up with visible opposing card types, mana curve, color, graveyard plan, or stack fight. Simic Merfolk is still an aggro-tempo deck after sideboarding, so preserve enough one- and two-mana creatures, Deeproot Pilgrimage density, and Mutavault pressure to punish opponents who stumble.

- Mystical Dispute role: bring Mystical Dispute against blue control, blue tempo, blue combo, and blue midrange when stack fights decide whether Kumena, Tyrant of Orazca, Deeproot Pilgrimage, Tishana's Tidebinder, or a lethal attack survives. Mystical Dispute is weak against nonblue creature decks, artifact-heavy decks with few blue spells, and opponents whose decisive permanents enter before countermagic is held up.

- Change the Equation role: bring Change the Equation against red or green decks where the legal targets are cheap pressure, removal, burn, planeswalker-style threats, or engine spells that matter before combat stabilizes. Change the Equation is weak against colorless artifact plans, blue control mirrors where Mystical Dispute is more efficient, and black-white midrange where many important spells may not match its legal targeting text.

- Spell Pierce role: bring Spell Pierce when the opponent's decisive early turns involve noncreature spells, sweepers, removal, discard, combo setup, or expensive payoffs that can be taxed while Merfolk attacks. Spell Pierce becomes weak when the opponent has excess mana, when the game is about creature combat only, or when holding one mana slows the board more than the counter protects it.

- Spell Snare role: bring Spell Snare against decks whose important two-mana spells are visible or strongly expected from public archetype context. Spell Snare is weak when the opponent's key interaction costs one, three, or more mana, and the decision agent must never assume a legal target if Veles does not expose one.

- Fading Hope role: bring Fading Hope against creature decks where one tempo bounce breaks a race, saves a Merfolk from removal by returning it, interrupts an aura or counter-stacked threat, or opens lethal. Fading Hope is weak against decks with few creatures, against enters-the-battlefield value creatures where bouncing helps the opponent, and against removal-heavy decks where countermagic or Stock Up provides more lasting value.

- March of Swirling Mist role: bring March of Swirling Mist against sweepers, targeted removal clusters, combat stalls, and creature mirrors where phasing protects multiple Merfolk or removes blockers for a decisive attack. March of Swirling Mist is weak when the opponent wins through noncreature permanents, graveyard loops, or stack-based combo, and it should not be treated as generic interaction before Veles shows a concrete combat or removal window.

- Haywire Mite role: bring extra Haywire Mite against artifact or enchantment decks, prison pieces, aura engines, graveyard hate artifacts, artifact combo, and enchantment-based removal that blocks Merfolk pressure. Haywire Mite is weak against spell-only control, pure creature aggro, and decks where the life or body matters less than maintaining lord, token, and counter density.

- Damping Sphere role: bring Damping Sphere against spell-chain combo, big-mana, lotus-style mana engines, and decks that rely on casting many spells in one turn. Damping Sphere is weak against normal fair decks and can tax Simic Merfolk's own double-spell turns, so deploy it only when slowing the opponent matters more than curving multiple creatures and interaction.

- Stock Up role: Card text check required, so bring Stock Up mainly for slow matchups where selection and card volume matter after early pressure is answered. Stock Up is weak against fast aggro, combo races, and board states where spending mana without affecting combat gives the opponent a lethal or near-lethal attack.

- Mistcaller role: bring Mistcaller against decks that put creatures onto the battlefield without casting them, graveyard creature return, token-combo creature entries, or collected creature-style effects when the registered opponent context supports that axis. Mistcaller is weak as a generic one-drop when the opponent casts creatures normally, and it should not displace better pressure unless the prevention text is live.

Blue Control Or Blue Tempo
Side in: 2 Mystical Dispute; 1 Spell Pierce; 2 Stock Up
Cut: 1 Haywire Mite; 1 Disruptor of Currents; 1 Mindspring Merfolk; 1 Champions of the Shoal; 1 Agatha's Soul Cauldron

- Plan rule: protect the first meaningful engine and keep attacking through stack fights. Mystical Dispute and Spell Pierce guard Deeproot Pilgrimage, Kumena, Tyrant of Orazca, Tishana's Tidebinder, and March-free combat turns; Stock Up refuels after removal, but do not keep a slow hand that lacks early pressure.

Red Or Green Aggro And Removal Decks
Side in: 2 Change the Equation; 2 Spell Snare; 1 Fading Hope; 1 March of Swirling Mist
Cut: 1 Haywire Mite; 1 Mindspring Merfolk; 1 Disruptor of Currents; 1 Champions of the Shoal; 1 Agatha's Soul Cauldron; 1 Kumena, Tyrant of Orazca

- Plan rule: trade mana efficiently while preserving a board that can counterattack. Change the Equation and Spell Snare handle eligible early plays, Fading Hope wins races by changing one combat, and March of Swirling Mist protects the team or creates a lethal swing; Kumena, Tyrant of Orazca is still strong, but one copy may be lower priority when four mana and tapping creatures are too slow.

Artifact Or Enchantment Engine
Side in: 2 Haywire Mite; 1 Damping Sphere; 1 Spell Pierce
Cut: 1 Disruptor of Currents; 1 Mindspring Merfolk; 1 Champions of the Shoal; 1 Kumena, Tyrant of Orazca

- Plan rule: answer the permanent that stops attacks or enables the opponent's engine, then resume pressure. Haywire Mite should target only visible noncreature artifact or enchantment permanents that matter; Damping Sphere is for mana or spell-chain engines, and Spell Pierce covers the setup turn when the opponent cannot pay.

Creature Combo Or Graveyard Creature Entry
Side in: 1 Mistcaller; 1 Fading Hope; 2 Spell Snare; 1 March of Swirling Mist
Cut: 1 Haywire Mite; 1 Mindspring Merfolk; 1 Disruptor of Currents; 1 Champions of the Shoal; 1 Agatha's Soul Cauldron

- Plan rule: keep Mistcaller for the turn where its prevention text matters, not as a disposable attacker unless the opponent's line is no longer relevant. Fading Hope and March of Swirling Mist cover tempo and survival, while Spell Snare is included only when the opponent's known engine uses two-mana spells.

- Add role cards: against black removal midrange, prefer Stock Up, Spell Pierce, and March of Swirling Mist when their legal windows matter. Reduce main-deck emphasis: lower-impact singleton creatures and excess Agatha's Soul Cauldron when graveyard abilities and counters are not deciding combat.

- Add role cards: against big-mana or spell-chain combo, prefer Damping Sphere, Spell Pierce, Mystical Dispute if blue, and Change the Equation if red or green. Reduce main-deck emphasis: slow creature-ability cards that do not disrupt the key turn, while keeping enough Merfolk to end the game before the opponent rebuilds.

- Add role cards: against go-wide creature mirrors, prefer Fading Hope and March of Swirling Mist, then exact legal counters if the opposing curve supports them. Reduce main-deck emphasis: slower card-selection or graveyard-value pieces when the game is decided by blocking, racing, and one decisive combat window.

## Matchup Guidance

- Aggro: Become the larger creature deck, not a pure racing deck, when the opponent can present faster early damage. Prioritize hands with Cenote Scout, Formidable Speaker, Floodpits Drowner, or Vodalian Hexcatcher plus two lands; Deeproot Pilgrimage is excellent when it starts making bodies before combat math becomes lethal, but a hand that only develops Deeproot Pilgrimage without early blockers is risky. Add role cards: Change the Equation against red or green aggression, Spell Snare when the opponent's important visible plays cost two, Fading Hope for one decisive combat swing, and March of Swirling Mist when preserving multiple Merfolk changes the race. Reduce main-deck emphasis: Haywire Mite when no artifact or enchantment target matters, slower singleton creatures, and excess Agatha's Soul Cauldron when the game is about board size rather than graveyard counters.

- Control: Present a threat every turn while refusing to spend all resources into obvious sweepers or open interaction. Deeproot Pilgrimage, Mutavault, Cavern of Souls, and Kumena, Tyrant of Orazca are the best pressure sources because they create ongoing damage or bodies without relying on a single creature surviving; do not overextend small Merfolk if a current board already forces action. Add role cards: Mystical Dispute, Spell Pierce, Stock Up, and March of Swirling Mist when the opponent's answers line up on the stack or through sweep effects. Reduce main-deck emphasis: Haywire Mite without targets, Disruptor of Currents if its tactical text is not relevant, and low-impact creature density when Stock Up gives a better recovery plan. Card text check required for Stock Up, so use it conditionally as a slower-matchup refuel card.

- Combo: Kill quickly while holding the narrow interaction that actually intersects the visible combo turn. Vodalian Hexcatcher should be treated as both pressure and a tax effect; Tishana's Tidebinder should be preserved for activated or triggered abilities only when Veles exposes a legal and meaningful stop; Deeproot Pilgrimage is good only if the clock it creates is fast enough. Add role cards: Damping Sphere against mana engines or spell-chain combo, Spell Pierce against noncreature setup, Mystical Dispute against blue combo, Change the Equation against red or green combo pieces, Spell Snare when two-mana spells are central, and Mistcaller against creature-entry combo. Reduce main-deck emphasis: slow tap-ability plans, haywire artifact/enchantment interaction unless a target class is known, and expensive card-advantage lines that do not affect the combo turn.

- Tempo: Protect board position and spend mana more efficiently than the opponent across each priority exchange. Cavern of Souls is especially valuable for resolving Merfolk through counters, while Mutavault makes removal awkward and keeps attacks flowing after sweep-light interaction. Floodpits Drowner and Tishana's Tidebinder should be used to convert a temporary opening into damage rather than to chase marginal value. Add role cards: Mystical Dispute, Spell Pierce, Fading Hope, Spell Snare, and March of Swirling Mist according to the opponent's exposed mana curve and removal type. Reduce main-deck emphasis: slow Agatha's Soul Cauldron setups when exile or bounce invalidates graveyard planning, and singleton creatures that do not win immediate combat or stack exchanges.

- Midrange: Build a recursive board advantage engine and avoid trading key Merfolk for low-impact damage. Deeproot Pilgrimage rewards normal Merfolk sequencing, Kumena, Tyrant of Orazca turns extra bodies into pressure or cards when its abilities are legal, and Agatha's Soul Cauldron can matter if creatures enter graveyards and counters change combat. Use Vodalian Hexcatcher to punish expensive removal or planeswalker-style setup only when the legal action appears and the opponent cannot easily pay. Add role cards: Stock Up for attrition, March of Swirling Mist against removal clusters, Spell Pierce against expensive noncreature swings, and Haywire Mite only for visible artifacts or enchantments. Reduce main-deck emphasis: narrow one-shot tempo cards against removal piles where long-game body count matters more.

- Big mana: End the game before the opponent's mana advantage dominates, and spend interaction on acceleration or payoff windows rather than small stabilizers. Damping Sphere is the clearest role card when the opponent relies on extra mana or multiple spells; Spell Pierce and Change the Equation can cover setup turns if the legal target is exposed. Keep hands that produce early Merfolk pressure plus disruption, not hands that hope Kumena, Tyrant of Orazca will take over after the opponent reaches a large mana state. Add role cards: Damping Sphere, Spell Pierce, Change the Equation, Mystical Dispute if blue, and Haywire Mite only if a permanent engine is visible or expected from registered context. Reduce main-deck emphasis: slow selection and tap-ability lines that do not add a fast clock.

- Graveyard: Identify whether the graveyard is a resource race, a creature-entry engine, or merely incidental value before spending cards. Agatha's Soul Cauldron can use graveyards tactically when its legal actions and targets are visible, but do not assume a graveyard card has a usable ability without rules-engine confirmation. Mistcaller is the sideboard card for creature entries that bypass casting; Haywire Mite is not graveyard hate unless a visible artifact or enchantment is the graveyard engine. Add role cards: Mistcaller, Spell Pierce, Spell Snare, Fading Hope, and March of Swirling Mist according to the exposed axis. Reduce main-deck emphasis: slow combat-only pieces if the opponent's graveyard turn is faster than the Merfolk clock.

- Artifact/enchantment: Treat Haywire Mite as targeted disruption for permanents that stop attacks, generate combo mana, lock combat, or invalidate counters. Do not spend Haywire Mite on a low-impact permanent while a visible engine piece or prison permanent is likely to matter more. Add role cards: Haywire Mite, Damping Sphere for mana or spell chains, Spell Pierce for setup, and Change the Equation only when color and target eligibility are actually relevant. Reduce main-deck emphasis: slower singleton creatures and one copy of Kumena, Tyrant of Orazca when mana must stay open for interaction.

- Go-wide: Preserve blockers until one attack with counters, tokens, or March of Swirling Mist changes the board. Deeproot Pilgrimage is a key mirror-breaker because extra Merfolk bodies improve both attacks and Kumena, Tyrant of Orazca activations; Mutavault should attack only when it does not expose lethal backswing or remove a needed blocker. Add role cards: Fading Hope, March of Swirling Mist, Spell Snare if the curve supports it, and Change the Equation against red or green boards. Reduce main-deck emphasis: cards that do not affect combat before the next attack step.

- Single-threat: Avoid chump attacking into one oversized blocker unless the attack changes lethal math or enables a follow-up legal action. Floodpits Drowner, Fading Hope, March of Swirling Mist, and Tishana's Tidebinder are the main ways to break one-threat boards, but Veles must confirm each target or ability window. Add role cards: Fading Hope, March of Swirling Mist, Spell Pierce against protection or pump, and Spell Snare when the threat or protection costs two. Reduce main-deck emphasis: slow value cards when tempo removal opens the cleanest lethal window.

- Burn: Preserve life total while maintaining a fast enough clock to make their topdecks poor. Breeding Pool shock decisions matter; choose untapped shock lands only when the mana immediately affects the board, protects a key creature, or prevents more damage than the two life costs. Add role cards: Change the Equation, Spell Pierce, Spell Snare if their eligible spells matter, March of Swirling Mist against targeted damage clusters, and Fading Hope when bouncing a creature saves more life than holding mana. Reduce main-deck emphasis: self-damaging mana lines, slow Kumena, Tyrant of Orazca activations, and Haywire Mite unless a target is visible.

- Removal-heavy: Diversify threat types and make the opponent answer engines, lands, and token production rather than one stacked creature. Deeproot Pilgrimage and Mutavault are high priority because they survive many creature-removal exchanges; Agatha's Soul Cauldron is useful when legal graveyard targets and counters let dead creatures continue influencing combat. Add role cards: Stock Up, Spell Pierce, Mystical Dispute if blue, March of Swirling Mist, and Haywire Mite only for permanent-based removal. Reduce main-deck emphasis: fragile one-card combat plans and low-impact singletons that do not punish attrition.

## Specific Matchup Notes

- General/archetype-only: Treat these notes as assumptions until the opponent reveals cards; visible battlefield, graveyard, hand-reveal effects, mana, and rules-engine legal actions override archetype labels. Prioritize sideboarding by exposed card types and mana curve, not by deck name alone.

- Blue tempo/control: Force them to answer multiple threat types before committing everything to one stack fight. Cavern of Souls, Mutavault, Deeproot Pilgrimage, and cheap Merfolk bodies pressure from different angles; keep Vodalian Hexcatcher and Tishana's Tidebinder for visible high-impact spells or abilities when the legal action exists. Add role cards: Mystical Dispute, Spell Pierce, Spell Snare, Stock Up, and March of Swirling Mist. Priority targets: counterspells that stop the first engine, sweepers or bounce that erase token pressure, and activated or triggered abilities that reverse a combat race.

- Red aggressive decks: Preserve life total first, then convert a stabilized board into a short attack window. Avoid unnecessary Breeding Pool shock lines, block with expendable bodies when legal, and use Floodpits Drowner, Fading Hope, March of Swirling Mist, or Change the Equation only when they prevent more damage than a normal attack would gain. Add role cards: Change the Equation, Fading Hope, Spell Snare, Spell Pierce, and March of Swirling Mist. Priority targets: burn pointed at key creatures, haste threats, pump or protection windows, and two-mana plays that define the clock.

- Creature mirrors and go-wide boards: Make Deeproot Pilgrimage and Kumena, Tyrant of Orazca convert body count into inevitability, but do not attack Mutavault if it is a needed blocker. Floodpits Drowner and Tishana's Tidebinder should open one decisive attack step, not merely remove a small blocker for minor damage. Add role cards: Fading Hope, March of Swirling Mist, Spell Snare, and Change the Equation when color and target text match. Priority targets: lord-style effects, tap or freeze effects, combat tricks, and blockers that keep lethal off the table.

- Big mana and spell-chain decks: Race while disrupting the mana turn that matters. Damping Sphere is the strongest sideboard plan when the opponent shows extra mana or multiple-spell turns; Spell Pierce, Change the Equation, and Mystical Dispute should protect the clock from setup spells or payoffs when legal. Priority targets: acceleration permanents, expensive payoff spells, and abilities that stabilize before Merfolk can finish.

- Artifact or enchantment engines: Save Haywire Mite for a permanent that blocks attacks, creates a combo resource, constrains casting, or blanks counters. Do not spend it on incidental value if a higher-impact permanent is visible or strongly implied by public information. Add role cards: Haywire Mite, Damping Sphere, Spell Pierce, and Change the Equation when eligible. Priority targets: prison pieces, mana engines, artifact creatures that dominate combat, and enchantments that invalidate Deeproot Pilgrimage or Mutavault pressure.

- Graveyard and reanimation decks: Identify whether the opponent is using the graveyard for creature entry, spell recursion, or incidental value before committing sideboard space. Mistcaller is the cleanest role card against creature-entry turns; Spell Pierce, Spell Snare, and Fading Hope cover stack or tempo windows. Agatha's Soul Cauldron depends on visible graveyard contents and legal actions, so do not assume it answers opposing graveyard plans without engine confirmation.

## Risk Summary

- Mana risk: Breeding Pool shock decisions can lose races, while Cavern of Souls can fail to cast noncreature interaction if named or sequenced poorly. Keep hands that produce early green or blue for actual legal plays, and avoid relying on Boseiju, Who Endures or Otawara, Soaring City as stable colored sources when tempo matters.

- Matchup risk: Simic Merfolk is strongest when early creatures, Deeproot Pilgrimage, and disruption overlap; hands with only pressure or only reactive cards can miss the required role. Re-evaluate the role after each revealed card instead of following the opening archetype assumption.

- Draw risk: Multiple copies of Agatha's Soul Cauldron or Deeproot Pilgrimage can be slow without creatures, and singleton cards such as Champions of the Shoal, Mindspring Merfolk, Disruptor of Currents, and Haywire Mite need rules-engine confirmation before being treated as primary plans. Card text check required for any unfamiliar singleton before making a high-risk line around it.

- Over-sideboarding risk: Too many Mystical Dispute, Change the Equation, Spell Pierce, Spell Snare, Stock Up, Damping Sphere, or Haywire Mite can dilute the Merfolk clock. Preserve enough Cenote Scout, Formidable Speaker, Floodpits Drowner, Harmonized Trio, Kumena, Tyrant of Orazca, Vodalian Hexcatcher, and Mutavault pressure to end the game.

- Graveyard risk: Agatha's Soul Cauldron is not a substitute for dedicated graveyard hate unless the legal action and target text prove it. Mistcaller should be reserved for creature-entry matchups, not boarded as generic graveyard interaction.

- Sweeper/removal risk: Stacking counters or commitment onto one creature can lose to removal, bounce, exile, or sweepers. Spread pressure through Deeproot Pilgrimage, Mutavault, and multiple Merfolk bodies unless one visible lethal line requires concentration.

- Closer risk: Kumena, Tyrant of Orazca and Mutavault can finish long games, but tapping too many creatures or lands can expose a lethal backswing. Confirm combat math and post-combat mana before activating or attacking.

- Interaction risk: Vodalian Hexcatcher, Tishana's Tidebinder, Spell Pierce, Mystical Dispute, Change the Equation, and Spell Snare are only as good as their legal targets. Do not hold mana forever against boards that require adding pressure.

- Sequencing risk: Playing engines before bodies, animating Mutavault too early, or using channel lands before normal land drops can cost tempo. Sequence creature first when pressure is missing, engine first when bodies are already present, and interaction first only when the exposed opposing turn is more dangerous than adding damage.

## Test Feedback Checklist

- Match result: Record which axis decided the game first: early creature pressure, Deeproot Pilgrimage tokens, Kumena, Tyrant of Orazca engine turns, Mutavault damage, counter-tempo from Vodalian Hexcatcher or Tishana's Tidebinder, or failure to stabilize against the opponent's board.

- Mulligans: For every opener, note whether it had a castable one- or two-mana creature, usable green and blue mana, and a coherent first three turns. Flag hands that kept Agatha's Soul Cauldron, Deeproot Pilgrimage, or sideboard interaction without enough creatures to make the plan active.

- Mana: Track whether Breeding Pool life payments mattered, whether Cavern of Souls fixed creature sequencing without stranding noncreature cards, and whether Boseiju, Who Endures, Otawara, Soaring City, or Mutavault created color-pressure turns. Record any game where Botanical Sanctum or Barkchannel Pathway timing changed the legal line.

- Velocity: Ask whether Cenote Scout, Formidable Speaker, Floodpits Drowner, Harmonized Trio, and Vodalian Hexcatcher produced enough early pressure before the opponent stabilized. If the deck spent early turns on engines without attacking, mark whether that delay was rewarded by the visible board state.

- Engines: Record when Deeproot Pilgrimage or Kumena, Tyrant of Orazca generated a decisive advantage, when they were win-more, and when they were stranded behind removal, sweepers, or too few Merfolk. Track whether Agatha's Soul Cauldron had legal and tactically relevant graveyard use; Card text check required before crediting it with an unverified line.

- Interaction: For each Vodalian Hexcatcher, Tishana's Tidebinder, Mystical Dispute, Change the Equation, Spell Pierce, Spell Snare, Fading Hope, March of Swirling Mist, Haywire Mite, Mistcaller, and Damping Sphere decision, ask whether the chosen window protected lethal, stopped stabilization, preserved survival, or merely delayed without improving the clock.

- Combat: Note missed attacks, unnecessary attacks with needed blockers, Mutavault activation mistakes, and turns where Floodpits Drowner or Tishana's Tidebinder should have created a decisive attack. Record whether Champions of the Shoal, Mindspring Merfolk, or Disruptor of Currents affected combat only after rules-engine text confirmed the legal action.

- Sideboard: After each post-board game, record which added role cards were drawn, cast, stranded, or unnecessary. Identify whether Stock Up improved attrition games, whether extra Haywire Mite had real targets, and whether Damping Sphere, Mistcaller, or cheap counters matched the opponent's revealed plan.

- Closing: Identify the turn where lethal became possible and whether the agent pursued it, waited for protection, or missed it. Track games lost after reaching a favorable board because the deck held interaction too long, tapped too many creatures for Kumena, Tyrant of Orazca, or failed to activate Mutavault.

- Role and mistakes: Label each game as beatdown, tempo, attrition, or survival after the first two turns and again at game end. Mark role drift when the agent protected the wrong resource, fought over a low-impact spell, or sideboarded into too many reactive cards.

- Card performance: List overperformers and underperformers by exact card name with board context, not just result. Separate cards that were weak because of sequencing from cards that were weak because the matchup made their text low impact.

## First Tuning Questions

- Creature density: If Deeproot Pilgrimage and Kumena, Tyrant of Orazca underperform, is the issue too few early Merfolk, too many noncreature hands with Agatha's Soul Cauldron, or poor sequencing of Cenote Scout, Formidable Speaker, Floodpits Drowner, Harmonized Trio, and Vodalian Hexcatcher?

- Engine quantity: If multiple Deeproot Pilgrimage or Agatha's Soul Cauldron copies clog openers, should the list lower one engine count, or are those cards still necessary to beat removal-heavy games where individual creatures trade down?

- Singleton proof: If Champions of the Shoal, Mindspring Merfolk, Disruptor of Currents, or main-deck Haywire Mite is frequently ignored or stranded, does rules-engine evidence show a real tactical role, or should that slot become another consistent threat, interaction piece, or sideboard-style answer?

- Mana base: If colored spells are stranded, should the balance among Cavern of Souls, Mutavault, Barkchannel Pathway, Botanical Sanctum, Breeding Pool, Island, Boseiju, Who Endures, and Otawara, Soaring City change? If life loss decides races, ask whether Breeding Pool shock frequency is too high for the red and creature matchups.

- Aggro plan: If fast opponents win before engines matter, does the deck need more low-cost interaction from Fading Hope, Spell Snare, Spell Pierce, Change the Equation, or March of Swirling Mist, or should main-deck sequencing become more blocker-conscious before changing card counts?

- Control plan: If blue or removal-heavy opponents answer every creature, are Stock Up, Mystical Dispute, Spell Pierce, and Mutavault enough to sustain pressure, or does the main deck need more resilient threats rather than more reactive cards?

- Closing power: If games stall with many creatures but no lethal attack, ask whether Kumena, Tyrant of Orazca activations, Mutavault pressure, Floodpits Drowner timing, or Harmonized Trio sizing is the bottleneck before changing the threat package.

- Sideboard slots: If Haywire Mite, Damping Sphere, Mistcaller, or March of Swirling Mist lacks targets across testing, identify the matchup it was meant to solve and whether that matchup instead needs another counterspell, bounce spell, card-advantage card, or creature plan.

- Role conflict: If post-board hands contain too many Mystical Dispute, Change the Equation, Spell Pierce, Spell Snare, Stock Up, and Damping Sphere, decide whether the sideboard plans are diluting the Merfolk clock. Preserve enough pressure that interaction converts into wins instead of longer losses.

## Veles Tactical Policy

### Policy: Pregame Role And Opening Pressure
- Priority: Medium
- Decision families: pregame; mulligan
- Cards: Cenote Scout; Formidable Speaker; Floodpits Drowner; Vodalian Hexcatcher; Harmonized Trio; Deeproot Pilgrimage; Kumena, Tyrant of Orazca
- Phase windows: opening hand, first turn planning
- Runtime cues: opening hand; play_draw choice; visible matchup label
- Use when: the game has not started and the hand must choose an opening role.
- Avoid when: the engine already requires a specific legal mulligan or play/draw action.
- Instructions: Prefer a pressure-first plan with castable early Merfolk, then decide whether Deeproot Pilgrimage or Kumena, Tyrant of Orazca can convert that pressure into material.
- Pilot skill floor: medium
- No-API allowed: no
- Light-model allowed: yes

### Policy: Mulligan Creature And Mana Gate
- Priority: High
- Decision families: mulligan
- Cards: Cenote Scout; Formidable Speaker; Floodpits Drowner; Vodalian Hexcatcher; Harmonized Trio; Breeding Pool; Botanical Sanctum; Barkchannel Pathway; Cavern of Souls; Island
- Phase windows: opening hand, London mulligan
- Runtime cues: action:keep; action:mulligan
- Use when: deciding whether the opener can cast a one- or two-mana creature and continue with blue-green access.
- Avoid when: the hand has no castable creature before turn three and only engines or colorless lands.
- Instructions: Keep pressure hands with stable mana; send back hands that make Deeproot Pilgrimage, Agatha's Soul Cauldron, or counters carry the game without creatures.
- Pilot skill floor: high
- No-API allowed: no
- Light-model allowed: yes

### Policy: First Merfolk Setup
- Priority: Medium
- Decision families: priority; mana
- Cards: Cenote Scout; Formidable Speaker; Floodpits Drowner; Vodalian Hexcatcher; Harmonized Trio; Deeproot Pilgrimage
- Phase windows: turns 1-2 main phases
- Runtime cues: action:cast Cenote Scout; action:cast Formidable Speaker; action:cast Floodpits Drowner; action:cast Vodalian Hexcatcher
- Use when: at least one early Merfolk is legal to cast and the battlefield needs the first creature.
- Avoid when: holding up interaction prevents an immediately visible losing line or protects an already lethal board.
- Instructions: Establish a Merfolk before committing slower engines; choose the line that leaves the next turn's mana and tribal pressure intact.
- Pilot skill floor: medium
- No-API allowed: no
- Light-model allowed: yes

### Policy: Cavern Naming
- Priority: Low
- Decision families: mana; pregame
- Cards: Cavern of Souls
- Phase windows: land entry replacement prompt
- Runtime cues: action:choose Merfolk
- Use when: a legal action text explicitly offers choosing Merfolk for Cavern of Souls.
- Avoid when: the legal action text does not name Merfolk.
- Instructions: Choose Merfolk because the registered creature suite is built around Merfolk sequencing.
- Pilot skill floor: low
- No-API allowed: yes
- Light-model allowed: yes

### Policy: Color Source Sequencing
- Priority: Medium
- Decision families: mana
- Cards: Breeding Pool; Botanical Sanctum; Barkchannel Pathway; Cavern of Souls; Island; Mutavault; Boseiju, Who Endures; Otawara, Soaring City
- Phase windows: land play, spell payment
- Runtime cues: action:play; action:pay mana
- Use when: choosing land sequencing or payment sources while blue and green spells are pending.
- Avoid when: the rules engine exposes only one legal payment.
- Instructions: Preserve untapped colored mana for early creatures and interaction; treat Mutavault and utility lands as pressure tools after colored requirements are secured.
- Pilot skill floor: medium
- No-API allowed: no
- Light-model allowed: yes

### Policy: Deeproot Pilgrimage Commitment Gate
- Priority: High
- Decision families: priority; mana
- Cards: Deeproot Pilgrimage
- Phase windows: main phases
- Runtime cues: action:cast Deeproot Pilgrimage
- Use when: casting Deeproot Pilgrimage competes with adding a creature, holding interaction, or activating Mutavault.
- Avoid when: the battlefield is empty and the same turn can instead produce necessary pressure.
- Instructions: Commit Deeproot Pilgrimage when existing or imminent Merfolk can trigger it before the opponent stabilizes; do not let it replace the first attacker.
- Pilot skill floor: high
- No-API allowed: no
- Light-model allowed: yes

### Policy: Kumena Engine Commitment Gate
- Priority: High
- Decision families: priority; combat; mana
- Cards: Kumena, Tyrant of Orazca
- Phase windows: main phases, combat setup, end steps
- Runtime cues: action:cast Kumena, Tyrant of Orazca; action:activate Kumena, Tyrant of Orazca
- Use when: casting or activating Kumena, Tyrant of Orazca changes available blockers, attackers, or interaction mana.
- Avoid when: tapping creatures removes lethal damage or needed blocks.
- Instructions: Use Kumena, Tyrant of Orazca as a snowball engine after pressure exists; compare card/size gains against immediate combat damage and survival.
- Pilot skill floor: high
- No-API allowed: no
- Light-model allowed: yes

### Policy: Mutavault Conversion
- Priority: Medium
- Decision families: combat; mana
- Cards: Mutavault; Deeproot Pilgrimage; Kumena, Tyrant of Orazca
- Phase windows: combat, end step, main phase after land sequencing
- Runtime cues: action:activate Mutavault; action:attack with Mutavault
- Use when: Mutavault activation is legal and mana is not required for a higher-priority spell or counter.
- Avoid when: activation strands interaction or exposes a needed land-creature to visible removal or combat loss.
- Instructions: Convert spare mana into damage or Merfolk count only when the resulting board advances pressure without sacrificing essential colored mana.
- Pilot skill floor: medium
- No-API allowed: no
- Light-model allowed: yes

### Policy: Permission Spending Gate
- Priority: High
- Decision families: interaction; priority
- Cards: Vodalian Hexcatcher; Tishana's Tidebinder; Mystical Dispute; Change the Equation; Spell Pierce; Spell Snare
- Phase windows: opponent cast/activation triggers, stack priority
- Runtime cues: action:cast Mystical Dispute; action:cast Change the Equation; action:cast Spell Pierce; action:cast Spell Snare; action:activate Vodalian Hexcatcher; action:cast Tishana's Tidebinder
- Use when: the opponent's visible spell or ability can stop lethal, sweep the board, win the race, or invalidate the engine.
- Avoid when: the target is low impact and spending interaction leaves no answer for a known higher-impact stack item.
- Instructions: Spend permission to preserve tempo or survival; keep pressure alive rather than countering every legal target.
- Pilot skill floor: high
- No-API allowed: no
- Light-model allowed: yes

### Policy: Tishana Target Resolution
- Priority: Medium
- Decision families: interaction; priority
- Cards: Tishana's Tidebinder
- Phase windows: stack targeting prompt
- Runtime cues: action:target Tishana's Tidebinder
- Use when: a Tishana's Tidebinder target prompt lists exactly one visible opposing triggered or activated ability.
- Avoid when: multiple legal targets exist or the target identities are unclear.
- Instructions: Select the only legal opposing ability when exactly one target is presented; otherwise route through tactical reasoning.
- Pilot skill floor: low
- No-API allowed: yes
- Light-model allowed: yes

### Policy: Artifact Or Enchantment Answer Gate
- Priority: Medium
- Decision families: interaction; selection
- Cards: Haywire Mite; Boseiju, Who Endures
- Phase windows: main phases, opponent end step, stack windows if legal
- Runtime cues: action:activate Haywire Mite; action:channel Boseiju, Who Endures
- Use when: a visible artifact or enchantment is constraining attacks, mana, engine triggers, or lethal.
- Avoid when: the target does not affect the current race or spending the answer prevents a stronger immediate line.
- Instructions: Use Haywire Mite or Boseiju, Who Endures for visible high-impact permanents; Card text check required for any unfamiliar target interaction.
- Pilot skill floor: medium
- No-API allowed: no
- Light-model allowed: yes

### Policy: Combat Attack Gate
- Priority: High
- Decision families: combat
- Cards: Mutavault; Floodpits Drowner; Formidable Speaker; Harmonized Trio; Vodalian Hexcatcher; Kumena, Tyrant of Orazca
- Phase windows: declare attackers
- Runtime cues: action:attack
- Use when: attackers must be declared and the board contains blockers, interaction mana, or possible lethal.
- Avoid when: exactly one legal attack exists and the engine marks no blockers or adverse consequences.
- Instructions: Attack when damage advances the clock without losing needed blockers or engines; include Mutavault only after mana needs are checked.
- Pilot skill floor: high
- No-API allowed: no
- Light-model allowed: yes

### Policy: Combat Block And Trick Survival Gate
- Priority: High
- Decision families: combat; interaction
- Cards: March of Swirling Mist; Fading Hope; Floodpits Drowner; Tishana's Tidebinder; Vodalian Hexcatcher
- Phase windows: declare blockers, post-block priority, damage prevention windows
- Runtime cues: action:block; action:cast March of Swirling Mist; action:cast Fading Hope
- Use when: the opponent attacks and legal blocks or instant-speed protection can change lethal, preserve Kumena, Tyrant of Orazca, or win the race.
- Avoid when: blocking sacrifices pressure without reducing a meaningful clock.
- Instructions: Preserve life total against short clocks; use bounce or phasing only after comparing survival, counterattack, and engine value.
- Pilot skill floor: high
- No-API allowed: no
- Light-model allowed: yes

### Policy: Exact Single Opponent Target
- Priority: Low
- Decision families: interaction; selection
- Cards: Fading Hope; Boseiju, Who Endures; Otawara, Soaring City; Haywire Mite
- Phase windows: target prompt after selected spell or ability
- Runtime cues: action:target opponent
- Use when: a target prompt presents exactly one legal opposing permanent and the preceding committed action requires that target.
- Avoid when: multiple legal targets are visible or target ownership is ambiguous.
- Instructions: Choose the only legal opposing permanent after the selected answer has already been committed.
- Pilot skill floor: low
- No-API allowed: yes
- Light-model allowed: yes

### Policy: Agatha's Soul Cauldron Commitment Gate
- Priority: Medium
- Decision families: priority; selection
- Cards: Agatha's Soul Cauldron
- Phase windows: main phases, activated ability windows
- Runtime cues: action:cast Agatha's Soul Cauldron; action:activate Agatha's Soul Cauldron
- Use when: graveyards and counters create a legal line involving Agatha's Soul Cauldron.
- Avoid when: the line depends on unverified card text or hidden graveyard assumptions.
- Instructions: Card text check required; treat the card as a graveyard/counter engine only when the rules engine exposes legal actions and visible targets.
- Pilot skill floor: high
- No-API allowed: no
- Light-model allowed: yes

### Policy: Singleton Text Caution
- Priority: Low
- Decision families: priority; combat; selection
- Cards: Champions of the Shoal; Mindspring Merfolk; Disruptor of Currents
- Phase windows: any window where the engine exposes their legal actions
- Runtime cues: action:cast Champions of the Shoal; action:cast Mindspring Merfolk; action:cast Disruptor of Currents; action:activate
- Use when: one of these singleton cards presents legal actions or affects combat sequencing.
- Avoid when: tactical value depends on remembered text not shown by the engine.
- Instructions: Card text check required; follow visible legal actions and prefer lines that maintain pressure, mana, and safe attacks.
- Pilot skill floor: medium
- No-API allowed: no
- Light-model allowed: yes

### Policy: Sideboard Plan Gate
- Priority: High
- Decision families: sideboard
- Cards: Mystical Dispute; Change the Equation; Fading Hope; Damping Sphere; Spell Pierce; March of Swirling Mist; Stock Up; Spell Snare; Mistcaller; Haywire Mite
- Phase windows: between games
- Runtime cues: sideboard_lock; sideboard_candidates
- Use when: selecting a legal post-board plan from registered cards.
- Avoid when: the proposed plan cuts too many creatures or adds reactive cards without enough pressure.
- Instructions: Add counters for stack matchups, Haywire Mite and Damping Sphere only for visible target roles, Stock Up for attrition, and keep the Merfolk clock intact.
- Pilot skill floor: high
- No-API allowed: no
- Light-model allowed: yes

### Policy: Sideboard Exact Lock Execution
- Priority: Low
- Decision families: sideboard
- Cards: none
- Phase windows: sideboard submission
- Runtime cues: action:submit sideboard plan
- Use when: the legal sideboard action text exactly matches a previously selected registered plan.
- Avoid when: the plan differs from the selected plan or validation has not confirmed registered 60 plus 15 preservation.
- Instructions: Submit only the already selected legal plan; do not alter card names or counts during execution.
- Pilot skill floor: low
- No-API allowed: yes
- Light-model allowed: yes
