Overview:

This Isshin, Two Heavens as One deck focuses on doubling attack-triggered abilities, leveraging Samurai/Warrior synergies, and generating value through combat-centric effects. The strategy revolves around attacking with solo creatures to amplify triggers like token generation, card draw, and combat manipulation, while deploying impactful attackers like Etali and Drakuseth to overwhelm opponents through combat damage.

Primer:

Core Strategy:
Deploy Isshin by turn 4 to double attack triggers from creatures like Krenko, Tin Street Kingpin (double token generation) and Etali, Primal Storm (double spell theft). The deck operates in three phases:

1. Early Setup: Ramp with Sol Ring/Wayfarer's Bauble and establish early attackers like Reinforced Ronin for card advantage.
2. Midgame Value: Cast key engines like Tempered in Solitude (double impulse draw) and Anim Pakal (exponential token generation) while protecting Isshin with Unbreakable Formation.
3. Combat Overload: Close games with doubled triggers from Raiyuu, Storm's Edge (extra combats), Drakuseth, Maw of Flames (double burn), and Skyknight Vanguard (double token armies).

Mulligan Priorities:

• Keep hands with 3 lands (prioritize untapped sources)
• Ensure Isshin can be cast by turn 4 via 2+ ramp pieces
• Include at least one early attacker (e.g., Reinforced Ronin, Selfless Samurai)
  Avoid hands lacking combat enablers or with only high-cost threats.

Key Tips:

• Prioritize Rogue's Passage activation post-Isshin to enable unblockable critical threats.
• Use Response // Resurgence in extra combat steps for maximum damage.
• Recur key enchantments/artifacts via Norika Yamazaki/Heiko Yamazaki from graveyard.

Weaknesses:

Critical

• Relies on Isshin's board presence: 3+ removals on Isshin cripples trigger doubling
• No infinite combos: Wins through combat only, vulnerable to fog/Propaganda effects

Moderate

• Slow recovery from wipes: Limited mass recursion beyond Sun Titan
• Mana constraints: 9 tapped lands and limited fast mana delay critical turns

Minor

• Mitigated vulnerabilities: Archangel of Tithes taxes attackers, Blasphemous Act clears boards

Most Important Cards:

• Etali, Primal Storm
• Drakuseth, Maw of Flames
• Raiyuu, Storm's Edge
• Krenko, Tin Street Kingpin
• Anim Pakal, Thousandth Moon
• Eiganjo Uprising
• Tempered in Solitude
• Archangel of Tithes
• Unbreakable Formation
• Dihada, Binder of Wills

Attribute Ratings:

Speed: 5/10
Goldfish wins around T8-10 via combat snowballing, lacking fast mana or 1-card wincons.

Resilience: 4/10
Moderate protection (indestructible grants) but over-relies on Isshin staying alive; struggles against repeated wipes.

Consistency: 6/10
12 draw/filter effects and Samurai-tribal redundancy, but only 3 tutors (Dihada, Heiko, Norika).

Interaction: 5/10
10 targeted removals (e.g., Swords to Plowshares, Terminate) but no free counterspells or stack interaction.

Rating Justification:

This deck operates as a focused casual build with synergistic combat triggers but lacks cEDH-level speed, resilience, or combo finishes. Its reliance on combat damage and moderate interaction suite align with the 4.5-5.5 range.

Power level: 4.5 - 5.5