Overview:

This 5-color Dragon tribal deck leverages The Ur-Dragon's eminence cost reduction to deploy massive dragons ahead of curve, supported by a hyper-optimized mana base and explosive ramp. The strategy revolves around cheating out high-impact dragons (via Sneak Attack, Hellkite Courser, and Selvala, Heart of the Wilds), generating overwhelming value through combat triggers (Old Gnawbone, Ancient Copper Dragon), and finishing with infinite combat steps (Aggravated Assault + Sword of Feast and Famine) or direct damage synergies (Terror of the Peaks, Scourge of Valkas). The Ur-Dragon itself acts as both a cost reducer and a draw engine, enabling rapid recovery after board wipes.

Primer:

Core Strategy Execution:

1. Early Acceleration (Turns 1-3): Deploy fast mana (Mana Vault, Lotus Petal, Chrome Mox) and tutors (Demonic Tutor, Imperial Seal) to set up explosive turns. Use Gemstone Caverns for turn 0 plays.
2. Cheat/Deploy Threats (Turns 2-5): Cast Selvala, Heart of the Wilds or Sneak Attack to bypass mana costs. Use Hellkite Courser to temporarily deploy The Ur-Dragon for instant card advantage.
3. Value Engines (Mid-Game): Generate Treasures en masse with Goldspan Dragon, Old Gnawbone, and The Reaver Cleaver. Use Rhystic Study, Necropotence, and The One Ring to maintain card advantage.
4. Win Conditions:
   • Infinite Combat: Aggravated Assault + Sword of Feast and Famine (untap lands via combat damage).
   • Burn Synergies: Terror of the Peaks + Scourge of Valkas + dragon swarm.
   • Treasure Storm: Ancient Copper Dragon/Old Gnawbone + Hellkite Courser loops.

Mulligan Priorities:

• Keep hands with 2+ mana sources (prioritize untapped lands/fast mana).
• Prioritize tutors, Sneak Attack, or a critical mass of ramp (Mana Vault, Selvala).
• Avoid hands lacking early plays or color fixing.

Key Tips:

• Use Teferi's Protection or Heroic Intervention to protect against board wipes during critical turns.
• Volrath's Stronghold and Haven of the Spirit Dragon recover key dragons.
• Mana Drain counterspells to fuel explosive follow-up turns.

Weaknesses:

Critical

• Relies on Commander Presence: Repeated removal of The Ur-Dragon negates the deck’s cost reduction, slowing dragon deployment.
• Board Wipe Vulnerability: Lacks mass recursion; rebuilding after a wipe requires significant card draw.
• Anti-Activation Stax: Cursed Totem/Linvala shuts down Selvala, Sneak Attack, and treasure generation.

Moderate

• Artifact Reliance: Fast mana and treasures are vulnerable to Vandalblast/Collector Ouphe.
• Graveyard Dependence: Recursion via Haven of the Spirit Dragon is disrupted by Rest in Peace.

Minor

• Limited stack interaction beyond counterspells (Mana Drain, Swan Song).

Most Important Cards:

• Sneak Attack (Cheat dragons into play)
• Selvala, Heart of the Wilds (Mana generation for explosive plays)
• Aggravated Assault (Infinite combat combo piece)
• Terror of the Peaks (Burn engine)
• Old Gnawbone (Treasure generation for mana/damage)
• Mana Vault (Early acceleration)
• Demonic Tutor (Tutor critical pieces)
• Teferi's Protection (Board wipe protection)
• The Ur-Dragon (Cost reduction and draw engine)
• Hellkite Courser (Temporary commander cheat)

Attribute Ratings:

Speed: 9/10
Capable of T3-4 wins via fast mana into Sneak Attack/Aggravated Assault combos or T5-6 overwhelming dragon boards.

Resilience: 7/10
Robust protection (hexproof, phasing) and recursion tools, but heavily reliant on resolving key permanents.

Consistency: 8/10
12 tutors, 10+ draw engines, and optimized mana base ensure reliable access to combo pieces.

Interaction: 6/10
Efficient counterspells and spot removal, but lacks redundancy against resolved threats.

Rating Justification:

This deck operates at cEDH-adjacent speeds (T3-4 wins) with high consistency and potent combos but lacks the stack dominance and compact wincons of true Tier 1 cEDH lists. Its vulnerability to stax and reliance on combat-oriented combos place it in the high-power optimized tier.

Power level: 8.0 - 8.5