Overview:

This 5-color Dragon tribal deck leverages The Ur-Dragon's eminence cost reduction to deploy massive flying threats rapidly. The strategy focuses on explosive Dragon deployment through both casting (enabled by treasure generation and cost reducers) and cheating mechanics like Sneak Attack and Hellkite Courser. Secondary win conditions include combat damage amplification through Terror of the Peaks/Scourge of Valkas triggers, infinite combat phases via Aggravated Assault + Old Gnawbone treasures, and alternate wins with Hellkite Tyrant. The Ur-Dragon serves as both an enabler (cost reduction) and a value engine (card draw/cheat triggers), but the deck can function without it thanks to redundant Dragon synergies.

Primer:

Core Strategy Execution:

1. Early Setup (Turns 1-3):
   • Ramp with Ignoble Hierarch, Birds of Paradise, Sol Ring, or fetch lands.
   • Deploy cost reducers like Ruby Medallion, Sarkhan, Soul Aflame, or Temur Battlecrier.
   • Tutor for key pieces with Demonic Tutor, Enlightened Tutor, or Vampiric Tutor.

2. Midgame Threats (Turns 4-6):

   • Cheat Dragons via Sneak Attack (pair with Underworld Breach/Volrath's Stronghold for recursion) or Hellkite Courser (temporary Ur-Dragon).
   • Exploit ETB triggers: Miirym, Sentinel Wyrm for token copies, Ancient Copper Dragon for treasures, Terror of the Peaks for damage.
   • Cast Rhythm of the Wild to bypass counterspells and grant haste.

3. Win Conditions (Turns 5-8):

   • Combat Overkill: Use Aggravated Assault with treasure generators (Goldspan Dragon, Old Gnawbone) for infinite combat phases.
   • Damage Amplification: Stack Terror of the Peaks, Scourge of Valkas, and Dragon Tempest triggers with multiple Dragon entries.
   • Combo Finish: Underworld Breach + Wheel of Fortune + Dragonstorm for a storm kill, or Hellkite Tyrant artifact hoarding.

Mulligan Priorities:

• Keep hands with 2-3 lands including at least one green source for ramp.
• Prioritize early ramp (dorks, Sol Ring) and at least one Dragon payoff (Dragon Tempest, Miirym).
• Mulligan away hands with only high-CMC Dragons and no ramp/cheat engines.

Key Tips:

• Use Sneak Attack with Underworld Breach to recur sacrificed Dragons.
• Teferi's Protection protects against board wipes during critical combat phases.
• Roaming Throne (naming Dragon) doubles all Dragon attack/ETB triggers.
• Final Fortune enables surprise lethal when combined with extra combat enablers.

Weaknesses:

Critical

• Board Wipe Vulnerability: Relies heavily on maintaining a Dragon army; lacks mass recursion outside Bladewing the Risen.
• Graveyard Reliance: Underworld Breach, Volrath's Stronghold, and Bladewing are crippled by Rest in Peace/Leyline of the Void.
• Anti-Cheat Hate: Hushbringer/Torpor Orb nullifies ETB damage triggers from Terror/Scourge.

Moderate

• Artifact Reliance: Smothering Tithe, treasure generators, and Sneak Attack are vulnerable to Vandalblast/Collector Ouphe.
• Stack Interaction: Limited counterspells (only Mana Drain, Stubborn Denial, Mental Misstep) for protecting combos.

Minor

• Color Fixing: Early turns can struggle with color requirements despite fetch lands.
• High CMC: Clunky draws without early ramp can lead to slow starts.

Most Important Cards:

• Sneak Attack (Cheat Dragons, combo with Breach)
• Underworld Breach (Recursion engine for key spells/Dragons)
• Terror of the Peaks (Primary damage amplifier)
• Hellkite Courser (Temporary Ur-Dragon cheat)
• Miirym, Sentinel Wyrm (Token duplication value)
• Aggravated Assault (Infinite combat enabler)
• Old Gnawbone (Treasure generation for combos)
• Demonic Tutor (Flexible combo/answer retrieval)
• Teferi's Protection (Board wipe protection)
• Rhystic Study (Critical card advantage engine)

Attribute Ratings:

Speed: 8/10
Capable of T4-T6 wins through Sneak Attack/Breach combos or overwhelming Dragon swarms, accelerated by 12+ ramp sources and cost reduction.

Resilience: 6/10
Has protection spells (Heroic Intervention, Teferi's Protection) and some recursion, but core strategies fold to resolved graveyard/ETB hate.

Consistency: 7/10
10 tutors and strong draw engines (Rhystic Study, Ur-Dragon triggers) find key pieces, but 5-color mana base can occasionally stumble.

Interaction: 5/10
Efficient targeted removal (Swords, Assassin's Trophy) and a few counterspells, but lacks stack control for late-game combo protection.

Rating Justification:

This deck operates at high-power casual levels with T5-7 win potential through explosive Dragon deployments and combo finishes, but its reliance on vulnerable permanents and limited interaction keeps it below cEDH viability. The robust mana base and tutor density elevate consistency, while board wipe susceptibility caps resilience.

Power level: 7.5 - 8.0