Overview:

This 5-color Dragon tribal deck leverages The Ur-Dragon's eminence ability to cast discounted Dragons, then uses their attack triggers to cheat additional threats into play and generate overwhelming value. The strategy combines explosive mana acceleration, high-impact Dragons, and combo potential via extra combat steps. The Ur-Dragon acts as both a cost reducer and a late-game value engine, though the deck can function without it due to redundant Dragon synergies. Key "hidden commanders" include Miirym, Sentinel Wyrm (doubling Dragon ETBs) and Terror of the Peaks (converting creature drops into burn).

Primer:

Core Strategy Execution:

1. Accelerate Mana (Turns 1-3): Deploy fast mana (Mana Vault, Jeska's Will, Dark Ritual) and land tutors (fetchlands, Worldly Tutor for Selvala, Heart of the Wilds). Magda, Brazen Outlaw generates Treasures when Dwarves tap.
2. Deploy Threats (Turns 3-5): Cast discounted Dragons like Goldspan Dragon, Ancient Copper Dragon, or Hellkite Courser (to cheat The Ur-Dragon). Use Sneak Attack for instant-speed Dragons.
3. Generate Value (Combat Phase): Attack with Dragons to trigger The Ur-Dragon's draw/cheat effect and synergies like Dragon Tempest (burn) or Old Gnawbone (Treasures).
4. Close the Game:
   • Combat: Use Aggravated Assault + Treasures for infinite combats.
   • Burn: Amplify ETB damage with Terror of the Peaks and Scourge of Valkas.
   • Combo: Selvala, Heart of the Wilds + high-power Dragon + Aggravated Assault for infinite mana/combats.

Mulligan Priorities:

• Keep hands with 2-3 lands, at least one ramp source (e.g., Sol Ring, Birds of Paradise).
• Prioritize early interaction (Swan Song, Esper Sentinel) in metas with heavy disruption.
• Avoid hands lacking ramp or Dragons unless holding Demonic Tutor/Imperial Seal.

Key Tips:

• Use Hoarding Broodlord to tutor and cast Saw in Half for critical combo pieces.
• Teferi's Protection protects against board wipes during alpha strikes.
• Volrath's Stronghold recurs key Dragons like Terror of the Peaks.

Weaknesses:

Critical

• Board wipes (Cyclonic Rift, Damnation) reset the board, requiring heavy recursion to recover.
• Anti-ETB effects (Torpor Orb, Hushbringer) nullify Miirym, Sentinel Wyrm, Terror of the Peaks, and attack triggers.
• Stax pieces (Cursed Totem, Dranith Magistrate) disable mana dorks and cheat effects.

Moderate

• Artifact hate (Vandalblast) disrupts fast mana and Sneak Attack.
• Tax effects (Thalia, Guardian of Thraben) slow the deck's high-CMC strategy.

Minor

• Limited graveyard reliance minimizes gy hate impact.
• Flyer-heavy boards can be outclassed by trample enablers (The Reaver Cleaver).

Most Important Cards:

• The Ur-Dragon (Cost reduction, card advantage engine)
• Sneak Attack (Cheat Dragons, enables explosive turns)
• Aggravated Assault (Infinite combats with Treasure generators)
• Selvala, Heart of the Wilds (Mana generation, combo piece)
• Terror of the Peaks (Burn win condition)
• Old Gnawbone (Treasure generation for combos)
• Dragon Tempest (Haste enabler, burn amplifier)
• Demonic Tutor (Tutor critical pieces)
• Mana Vault (Explosive early mana)
• Miirym, Sentinel Wyrm (Value multiplier)

Attribute Ratings:

Speed: 8/10

• Capable of T4-5 wins via Sneak Attack + Aggravated Assault/Terror of the Peaks, or T6 combat overkill with eminence discounts.

Resilience: 6/10

• Protection spells (Teferi's Protection, Heroic Intervention) and recursion (Volrath's Stronghold) mitigate removal, but board wipes remain devastating.

Consistency: 9/10

• 12 tutors (including Demonic Tutor, Imperial Seal), 10+ draw engines (The Ur-Dragon, Rhystic Study), and redundant Dragon synergies ensure key pieces are accessible.

Interaction: 7/10

• Counterspells (Mana Drain, Swan Song), targeted removal (Swords to Plowshares), and stack protection (Red Elemental Blast) handle most threats.

Rating Justification:

This deck operates at cEDH-adjacent speeds (T4-5 wins) with high consistency and combo density but lacks the interaction suite and stack dominance of true cEDH lists. Its vulnerability to board wipes and stax anchors it in the High Power tier.

Power level: 8.0 - 8.5