Overview:

This 5-color Dragon tribal deck helmed by Tiamat focuses on ramping into massive Dragon threats and leveraging their synergistic abilities. The commander serves as the deck's core engine, tutoring 5 key Dragons when cast to establish overwhelming board presence. Secondary themes include dungeon venturing, planeswalker support, and treasure generation to fuel explosive plays. While primarily combat-focused, the deck has alternative win avenues through planeswalker ultimates (Sarkhan, Dragonsoul) and damage multipliers like Twinflame Tyrant.

Primer:

Core Strategy Execution:

1. Early Ramp (Turns 1-4): Prioritize land-fetching with Farseek, Ranger's Path, and triomes. Deploy mana rocks like Lapis Orb of Dragonkind and Timeless Lotus. Use Spelunking to accelerate land drops.
2. Commander Setup (Turns 5-7): Cast Tiamat to fetch critical Dragons - typically Miirym, Sentinel Wyrm, Old Gnawbone, Atarka, World Render, Thrakkus the Butcher, and Wrathful Red Dragon.
3. Board Domination (Turns 6-8): Deploy fetched Dragons with cost reducers like Dragon Arch. Use Teleportation Circle to reset ETB effects. Activate The World Tree in late game for God backup.
4. Win Conditions:
   • Combat: Multiply damage with Crucible of Fire, Thrakkus, and Atarka
   • Synergy: Miirym token duplication + Wrathful Red Dragon damage redirection
   • Alternate: Sarkhan, Dragonsoul ultimate into Dragon army

Mulligan Priorities:

• Keep hands with 3+ lands including green sources
• Prioritize ramp spells over high-CMC Dragons
• Look for color-fixing artifacts (Moonsilver Key, Prismatic Geoscope)
• Avoid hands without early land drops or ramp

Key Tips:

• Use Cavern of Souls naming Dragons to ensure uncounterable threats
• Wilderness Reclamation enables instant-speed Dragon deployments
• Reconstruct History can recover multiple key card types
• Klauth, Unrivaled Ancient provides explosive combat-phase mana

Weaknesses:

Critical

• Extreme vulnerability to board wipes (only 3 mass protection spells)
• Commander-dependent strategy with high recast cost (12 mana)
• Limited early interaction for fast combo decks

Moderate

• Slow setup due to taplands and high average CMC (4.1)
• Weak to Dragon Tempest-style anti-flying tech
• Treasure reliance disrupted by Collector Ouphe effects

Minor

• Some dungeon/initiative packages don't synergize with primary strategy
• Mana base struggles with color-intensive costs (UUU, BBB)

Most Important Cards:

• Tiamat (Tutor engine & win condition)
• Miirym, Sentinel Wyrm (Value multiplier)
• Old Gnawbone (Trealth generator)
• Crucible of Fire (Power boost)
• The World Tree (Late-game mana & God recursion)
• Klauth, Unrivaled Ancient (Mana acceleration)
• Teleportation Circle (ETB abuse)
• Cavern of Souls (Protection)
• Blood Money (Board wipe + treasure)
• Sarkhan, Dragonsoul (Alternate win condition)

Attribute Ratings:

Speed: 5/10
Can threaten wins by T8-9 through combat, but requires multiple setup turns for Dragon deployment and lacks fast combo finishes.

Resilience: 4/10
Limited protection for key pieces and heavy commander reliance make recovery difficult after disruption. Some recursion via Haven of the Spirit Dragon helps.

Consistency: 6/10
Tiamat provides strong tutoring, but the high curve and color requirements can lead to inconsistent early games.

Interaction: 5/10
Contains targeted removal and counterspells, but lacks stack interaction for protecting combos or stopping early threats.

Rating Justification:

This deck operates as a focused casual build with optimized elements, typically threatening wins through combat around T8-9. While possessing strong late-game potential, its commander dependency and vulnerability to common disruption keep it below high-power tiers.

Power level: 5.0 - 5.5