Overview:

This Mardu attack-trigger deck leverages Isshin, Two Heavens as One to double combat-phase value from a swarm of token generators, extra combat enablers, and damage amplifiers. The primary strategy revolves around overwhelming opponents with exponential token production (e.g., Adeline, Resplendent Cathar, Myrel, Shield of Argive), augmented by multiple combat steps (Aurelia, the Warleader, Karlach, Fury of Avernus). Secondary win conditions include infinite combat loops (Aggravated Assault + Sword of Feast and Famine) and passive damage from Corpse Knight/Hellrider. Isshin acts as a critical force multiplier, though the deck can still function through token spam if he’s removed.

Primer:

Core Strategy Execution:

1. Early Setup (Turns 1-3): Deploy mana rocks (Sol Ring, Arcane Signet) or token generators (Esper Sentinel, Krenko, Tin Street Kingpin). Cast Isshin on curve (T3 with acceleration).
2. Trigger Doubling (Turns 4-6): Attack with Isshin and token-makers to create explosive value:
   • Adeline creates 2× tokens per opponent.
   • Myrel doubles Soldier production, locking opponents out of interaction during your turn.
   • Anim Pakal scales exponentially with +1/+1 counters.
3. Combat Multipliers: Activate extra combats via Aurelia, the Warleader or Karlach, then finish with Akroma's Will or Boros Charm.
4. Alternative Wins:
   • Infinite combats: Generate 5+ mana (Treasures from Goldspan Dragon/Captain Lannery Storm) to loop Aggravated Assault with Sword of Feast and Famine’s untap.
   • Drain via Corpse Knight/Hellrider triggers amplified by Isshin.

Mulligan Priorities:

• Keep hands with 2-3 lands, at least one ramp piece, and an early attacker/token generator.
• Prioritize Isshin enablers (e.g., Reconnaissance to protect attackers) or combo components (Aggravated Assault + Sword).
• Avoid hands without early plays or excessive high-CMC cards.

Key Tips:

• Use Reconnaissance to safely trigger attack abilities without losing creatures.
• Purphoros, Bronze-Blooded cheats in Gisela, Blade of Goldnight or Etali, Primal Storm for immediate impact.
• Windcrag Siege (Mardu mode) triples attack triggers if Isshin is out.
• Smothering Tithe fuels Aggravated Assault loops.

Weaknesses:

Critical

• Board wipes cripple momentum: Limited mass recursion outside Sevinne's Reclamation/Sun Titan.
• Commander reliance: Repeated Isshin removal slows trigger doubling significantly.
• Anti-token tech: Cursed Totem, Elesh Norn, Grand Cenobite, or Propaganda-effects stall the strategy.

Moderate

• Artifact/Enchantment hate: Targets key pieces like Smothering Tithe, Aggravated Assault, and Swords.
• Stack interaction: Counterspells disrupt critical sorcery-speed combat enablers (Aurelia, Karlach).

Minor

• Graveyard reliance: Limited recursion, but not a core strategy.
• Mana constraints: High-CMC finishers (Ruinous Ultimatum, Gisela) can clog hands.

Most Important Cards:

• Isshin, Two Heavens as One (Strategy linchpin)
• Adeline, Resplendent Cathar (Token flood engine)
• Aggravated Assault (Infinite combat enabler)
• Sword of Feast and Famine (Combo piece, protection)
• Myrel, Shield of Argive (Token generation + stax effect)
• Akroma's Will (Game-ending combat trick)
• Smothering Tithe (Mana for combos, card parity)
• Purphoros, Bronze-Blooded (Cheat threat deployment)
• Karlach, Fury of Avernus (Extra combats)
• Esper Sentinel (Early ramp + draw)

Attribute Ratings:

Speed: 7/10

• Can threaten T5-7 wins via token swarm or T6-8 infinite combats, accelerated by Treasures and tutors.

Resilience: 5/10

• Moderate protection (Flawless Maneuver, Boros Charm) but struggles to rebuild after wipes. Isshin’s recast cost becomes prohibitive.

Consistency: 7/10

• Strong tutor density (7 tutors) and card draw (Esper Sentinel, The One Ring) ensure access to key pieces.

Interaction: 6/10

• Efficient targeted removal (Swords to Plowshares, Anguished Unmaking) and board wipes (Blasphemous Act), but limited stack interaction.

Rating Justification:

This deck operates at high-power casual levels, capable of T6-7 wins through combat or combos with strong consistency, but falters against heavy interaction or stax. Its speed aligns with the "Focused" tier (T7-8), while resilience limitations prevent higher optimization.

Power level: 6.0 - 6.5