Overview:

This Temur (G/U/R) Dragon tribal deck leverages Ureni of the Unwritten to cheat high-impact Dragons into play while generating value through flying beaters, token swarms, and triggered abilities. The primary strategy focuses on ramping into Ureni or cost-reduced Dragons, then snowballing with Dragon ETB effects like Terror of the Peaks damage, Lathliss, Dragon Queen tokens, and Temur Ascendancy card draw. Ureni acts as both a threat accelerator and a late-game engine, though the deck can function independently with its density of Dragons and tribal synergies. Secondary win conditions include Hellkite Tyrant artifact theft/alternate wincon and Utvara Hellkite token overruns.

Primer:

Core Strategy Execution:

1. Early Setup (Turns 1-4):
   • Deploy mana rocks (Sol Ring, Dragon's Hoard), cost reducers (Urza's Incubator, Dragonlord's Servant), and land ramp (Farseek, Kodama's Reach).
   • Cast low-cost Dragons like Scaled Nurturer or Ganax, Astral Hunter to trigger early value.

2. Midgame Engine (Turns 4-7):

   • Cast Ureni or Miirym, Sentinel Wyrm to start cheating Dragons from the top 8 cards. Prioritize Dragons with immediate impact: Dragonlord Atarka (removal), Terror of the Peaks (burn), or Ancient Silver Dragon (card draw).
   • Activate Monster Manual or Selvala's Stampede to bypass mana costs.

3. Win Condition Deployment:

   • Combat Overrun: Use Atarka, World Render (double strike), Utvara Hellkite (token generation), and Become the Avalanche (scaling pump) for lethal swings.
   • Burn: Stack Terror of the Peaks with multiple Dragon ETBs.
   • Alternate Wins: Steal permanents with Hellkite Tyrant or Opportunistic Dragon; leverage Hellkite Tyrant's artifact-count victory.

Mulligan Priorities:

• Keep hands with 3+ lands, at least one ramp spell, and a Dragon or cost reducer.
• Prioritize Urza's Incubator, Dragon Tempest, or Temur Ascendancy in opening hands.
• Avoid hands with only high-CMC Dragons and no ramp.

Key Tips:

• Time Ureni casts to maximize attack triggers – use Swiftfoot Boots or Asceticism to protect it.
• Conjurer's Closet and Thassa, Deep-Dwelling can re-trigger ETBs of Dragons cheated by Ureni.
• Save Cyclonic Rift for critical turns when opponents commit to board states.

Weaknesses:

Critical

• Commander Dependency: Ureni’s 6 CMC and lack of inherent protection make the deck vulnerable to repeated removal, slowing Dragon-cheating engines.
• Artifact Reliance: Hellkite Tyrant, Dragon's Hoard, and treasure generators fold to Vandalblast-level artifact hate.

Moderate

• Board Wipe Vulnerability: Limited recursion outside Haven of the Spirit Dragon makes recovery from Farewell or Blasphemous Act difficult.
• Stack Interaction: Only 4 counterspells (e.g., Fierce Guardianship) and reactive removal to protect key plays.

Minor

• Mana Consistency: Heavy color requirements (G/U/R) strain the budget mana base under pressure.
• Non-Dragon Flood: Topdecking non-Dragons mid-late game weakens Ureni’s ability.

Most Important Cards:

• Miirym, Sentinel Wyrm (Double Dragon ETBs, exponential value)
• Terror of the Peaks (Burn engine for Dragon deployment)
• Urza's Incubator (Critical cost reduction for tribal core)
• Temur Ascendancy (Haste enabler + card draw for 4+ power Dragons)
• Hellkite Tyrant (Alternate wincon & artifact theft)
• Cyclonic Rift (Game-resetting board control)
• Dragon Tempest (Haste + burn on Dragon ETB)
• Ancient Silver Dragon (Massive card advantage engine)
• Utvara Hellkite (Token swarm generator)
• Thassa, Deep-Dwelling (ETB recursion for Dragons)

Attribute Ratings:

Speed: 6/10

• Can deploy threatening boards by T5-7 with optimal ramp, but lacks fast mana for cEDH-speed wins.

Resilience: 5/10

• Limited protection beyond Asceticism and spot hexproof; struggles to rebuild after wipes.

Consistency: 7/10

• Strong tribal synergy and card draw from Dragons, but lacks top-tier tutors for combo assembly.

Interaction: 5/10

• 10 targeted removal/counter spells offer moderate disruption but lack stack control for combo metas.

Rating Justification:

This deck operates as a Focused build with T7-8 combat/burn wins through efficient tribal synergies and value engines, aligning with the 6.0 tier. While its Dragon density and cheat effects provide consistency, reliance on combat and vulnerability to wipes prevent higher optimization.

Power level: 6.0 - 6.5