Overview:

This 5-color Dragon tribal deck leverages The Ur-Dragon's cost reduction and attack-trigger card advantage to flood the board with high-impact Dragons. The strategy combines explosive ramp, cheat-out effects like Sneak Attack and Hellkite Courser, and multiple combat/damage amplifiers to overwhelm opponents. Key themes include treasure generation (Old Gnawbone, Goldspan Dragon), infinite combat loops (Aggravated Assault + treasure producers), and value recursion (Underworld Breach, Bladewing the Risen). The Ur-Dragon serves as both an engine (card advantage) and enabler (cost reduction), but the deck can function independently through its dense Dragon synergy package.

Primer:

Core Strategy Execution:

1. Early Setup (T1-3): Deploy fast mana (Ignoble Hierarch, Sol Ring), cost reducers (Ruby Medallion, Temur Battlecrier), and value engines (Rhystic Study, Smothering Tithe).
2. Midgame Threats (T4-6): Cheat out Dragons using Sneak Attack, Hellkite Courser, or cast discounted threats. Prioritize treasure generators (Ancient Copper Dragon, The Reaver Cleaver) and value engines (Terror of the Peaks, Scourge of Valkas).
3. Endgame:
   • Combat Overkill: Use Aggravated Assault + treasure generators for infinite combats. Amplify damage with Twinflame Tyrant and Dragon Tempest.
   • Combo Kills: Underworld Breach + Wheel of Fortune + Dragonstorm for massive storm turns.
   • Alternative Wins: Hellkite Tyrant artifact theft or Miirym, Sentinel Wyrm token duplication.

Mulligan Priorities:

• Keep hands with 2-3 lands including color fixing (fetch lands, Cavern of Souls).
• Prioritize early ramp (1-3 CMC) and at least one Dragon payoff engine.
• Value hands containing Rhystic Study, Sneak Attack, or Bloom Tender.

Key Tips:

• Use Roaming Throne (Dragon type) to double ETB/attack triggers from key Dragons.
• Underworld Breach enables recursive casting of Demonic Tutor, Dragonstorm, and protection spells.
• Teferi's Protection protects against board wipes during critical combat phases.

Weaknesses:

Critical

• Extreme vulnerability to Cursed Totem/Linvala, Keeper of Silence shutting off mana dorks and activated abilities.
• Relies heavily on combat phase; struggles against Propaganda/Ghostly Prison effects.

Moderate

• Board wipes cripple momentum without immediate recursion (only Bladewing the Risen/Volrath's Stronghold for recovery).
• Limited stack interaction beyond Mana Drain and Stubborn Denial.

Minor

• High life payment from pain lands could enable opponents' drain strategies.
• Some anti-synergy between Rhythm of the Wild and The Ur-Dragon's cost reduction.

Most Important Cards:

• The Ur-Dragon (Cost reduction engine & card advantage)
• Sneak Attack (Cheat out Dragons for immediate impact)
• Aggravated Assault (Infinite combat enabler with treasure generators)
• Old Gnawbone (Treasure generation for explosive turns)
• Underworld Breach (Recursion engine for key spells)
• Hellkite Courser (Temporary commander recursion)
• Miirym, Sentinel Wyrm (Token duplication value)
• Terror of the Peaks (Damage amplification)
• Cavern of Souls (Uncounterable Dragon casting)
• Bloom Tender (5-color mana generation)

Attribute Ratings:

Speed: 8/10
Capable of T4-5 wins with ideal draws (Sneak Attack + Aggravated Assault + treasure generator), typically threatens lethal by T6-7.

Resilience: 6/10
Multiple protection spells (Heroic Intervention, Teferi's Protection) and recursion, but over-reliant on creature-based strategies vulnerable to wipes.

Consistency: 7/10
Strong tutor density (7 tutors) and card draw, but 5-color mana requirements can occasionally cause stumbling.

Interaction: 5/10
Efficient targeted removal (Swords to Plowshares, Assassin's Trophy) and a few counterspells, but lacks comprehensive stack control.

Rating Justification:

This deck operates at high-power casual levels with T4-5 goldfish potential through combat loops and cheat-out effects, but its creature-centric strategy and moderate interaction keep it below cEDH viability. The optimized mana base and combo lines push it beyond typical casual decks, while vulnerability to common stax pieces limits its ceiling.

Power level: 7.0 - 7.5