Overview:

The Ur-Dragon deck focuses on accelerating into massive Dragon threats using cost reduction and mana ramp, leveraging combat triggers and token generation to overwhelm opponents. While it has some combo potential and strong synergies, it's held back by a high curve, moderate interaction, and vulnerability to disruption.

Primer:

Core Strategy:
This deck aims to cheat out Dragons early via The Ur-Dragon’s eminence, Morophon, the Boundless, and Fist of Suns, then snowball with attack triggers (The Ur-Dragon, Utvara Hellkite). Key phases:

1. Ramp/Cost Reduction: Use Dragonlord's Servant, Herald’s Horn, and Sarkhan, Soul Aflame to cast Dragons 2–4 turns ahead of curve.
2. Token Swarm: Lathliss, Dragon Queen and Miirym, Sentinel Wyrm generate exponential Dragon tokens.
3. Combat Loops: Aggravated Assault + Dragon’s Hoard/Ur-Dragon draw enables infinite combat phases.

Key Lines:

• T4 Tiamat → fetch Scourge of Valkas, Utvara Hellkite, Ancient Gold Dragon for immediate board impact.
• Miirym + Bladewing the Risen creates recursive Dragon ETB value.
• Scourge of the Throne + Thrakkus the Butcher doubles power for one-shot kills.

Mulligan Priorities:

• Keep hands with 3 lands + 1–2 ramp pieces (Sol Ring, Bloom Tender).
• Prioritize Cavern of Souls/Dragon Arch against blue decks.

Weaknesses to Mitigate:

• Protect key Dragons with Lightning Greaves before deploying combo pieces.
• Hold Boros Charm for board wipe protection.

Weaknesses:

• Critical:
  • Fold to Cursed Totem/Linvala, Keeper of Silence shutting off mana dorks.
  • No graveyard recursion beyond Bladewing.
• Moderate:
  • Slow recovery from Cyclonic Rift.
  • Limited noncombat wincons.
• Minor:
  • Mana base vulnerable to Blood Moon (relies on basics for mitigation).

Most Important Cards:

• Miirym, Sentinel Wyrm
• Scourge of Valkas
• Utvara Hellkite
• Aggravated Assault
• Morophon, the Boundless
• Fist of Suns
• Dragon Tempest
• Tiamat
• Ancient Bronze Dragon
• Dragon’s Hoard

Attribute Ratings:

Speed: 6/10

• Can deploy game-winning boards by T6–7 via cost reduction, but lacks T3–4 turbo potential. Fist of Suns enables T5 Two-Headed Hellkite, but inconsistent.

Resilience: 5/10

• Moderate protection (Counterspell, Swords to Plowshares) and token redundancy, but key pieces like Miirym are irreplaceable.

Consistency: 7/10

• 6 tutors (Eladamri’s Call, Sarkhan’s Triumph) and 8 cost reducers ensure Dragon access. Domain Scion of Draco mitigates color issues.

Interaction: 4/10

• Limited to 5 targeted removals and 2 board wipes. No free counterspells or stax to disrupt opponents.

Rating Justification:

This deck sits between Optimized Casual (5.0) and Focused (6.0). It outperforms precons with explosive Dragon chains but lacks:

• The speed (T7+ wins vs T6–7 rubric for 6.0)
• Interaction density (4/10 vs 6/10 expected for 6.0)
• Alternate win paths (100% combat-reliant)

Power level: 5.0 – 5.5