Overview:

This 5-color Dragon tribal deck leverages Tiamat as a massive tutor engine, fetching key Dragons to establish overwhelming board presence. The primary strategy involves ramping into Tiamat (or other high-impact Dragons) to deploy flying threats that synergize with tribal payoffs like Miirym, Sentinel Wyrm, Lathliss, Dragon Queen, and Thrakkus the Butcher. Secondary win conditions include combat tricks with extra attack phases (Hellkite Charger + All-Out Assault) and value engines like The Ur-Dragon. Tiamat is essential as the linchpin tutor but vulnerable to removal before resolving its ETB, making ramp and protection critical.

Primer:

Core Strategy Execution:

1. Early Ramp/Fixing (Turns 1-4): Prioritize land-fetching spells (Cultivate, Rampant Growth, Harrow) and mana rocks (Sol Ring, Arcane Signet). Use slow-fetch lands (e.g., Flood Plain) cautiously.
2. Deploy Commander/Key Dragons (Turns 5-7): Cast Tiamat to fetch 5 Dragons (e.g., Miirym, Sentinel Wyrm, The Ur-Dragon, Thrakkus, Lathliss, Atarka, World Render). Protect Tiamat with haste enablers (Carnelian Orb of Dragonkind) or prioritize Rivaz of the Claw for recursion.
3. Overwhelm with Synergies (Turns 6-9):
   • Exploit token doubling with Miirym + Lathliss.
   • Amplify damage via Thrakkus (power doubling) or Atarka (double strike).
   • Chain combat phases with Hellkite Charger + mana reducers (Ur-Dragon).
4. Closers: All-Out Assault for instant combat wins, Earthquake for board control, or O-Kagachi, Vengeful Kami for removal evasion.

Mulligan Priorities:

• Keep hands with 3+ lands including color fixing (e.g., Command Tower).
• Prioritize early ramp (1-3 CMC) or Tiamat enablers like Rivaz of the Claw.
• Avoid hands lacking green/red sources or with only high-CMC Dragons.

Key Tips:

• Tiamat Sequencing: Fetch Dragons that enable immediate value (e.g., Korlessa, Scale Singer for top-deck casting) or protection (Dragonlord Ojutai).
• Recursion Leverage: Use Rivaz of the Claw to replay Dragons from graveyard after board wipes.
• Combat Tricks: Activate Hellkite Charger with The Ur-Dragon's cost reduction for multiple attacks.
• Interaction Timing: Deploy Austere Command/In Garruk's Wake asymmetrically with Miirym tokens.

Weaknesses:

Critical

• Severe vulnerability to board wipes (e.g., Damnation), lacking mass recursion beyond Rivaz.
• Tiamat removal pre-ETB cripples consistency, with limited protection (only New Way Forward noted).
• Anti-tutor/ETB hate (Opposition Agent, Torpor Orb) disrupts core engine.

Moderate

• Slow mana base (15+ taplands) delays critical turns.
• Graveyard hate (Rest in Peace) neuters Rivaz recursion.
• Artifact/enchantment reliance on ramp exposes to Vandalblast effects.

Minor

• Limited stack interaction against noncreature combos.
• High-CMC concentration risks mana flood/screw without sufficient draw.

Most Important Cards:

• Tiamat (Commander/tutor engine)
• Miirym, Sentinel Wyrm (Token doubler, value multiplier)
• Rivaz of the Claw (Mana acceleration, graveyard recursion)
• The Ur-Dragon (Cost reduction, card advantage)
• Thrakkus the Butcher (Combat damage amplifier)
• Lathliss, Dragon Queen (Token generation, anthem effect)
• Hellkite Charger (Extra combat enabler)
• Cultivate (Critical ramp/fixing)
• Sol Ring (Early mana acceleration)
• All-Out Assault (Combat phase finisher)

Attribute Ratings:

Speed: 5/10

• Capable of T7-9 wins with ideal ramp into Tiamat + combat enablers, but taplands and high curve delay consistency.

Resilience: 4/10

• Recursion via Rivaz and draw engines (Distant Melody) offer recovery, but over-reliance on Tiamat's ETB and minimal protection spells create fragility.

Consistency: 6/10

• Tiamat tutors 5 key pieces, and Korlessa enables top-deck casting, but limited tutor density and slow draws hinder early reliability.

Interaction: 4/10

• Board wipes (Austere Command, Earthquake) and targeted removal (Crush Contraband) exist but are costly and lack stack interaction.

Rating Justification:

This deck aims for T7-9 wins via combat synergies but is slowed by its clunky mana base and vulnerability to disruption, placing it in the "Casual/Precon" to "Focused Casual" range. Its reliance on resolving Tiamat and recovering from wipes caps resilience below optimized decks.

Power level: 4.0 - 4.5