Overview:

This Eldrazi tribal deck leverages Ulalek's ability to copy spells and abilities, aiming to overwhelm opponents with massive Eldrazi threats, annihilator triggers, and combo potential. It combines fast mana, cost reduction, and tutors to deploy game-ending threats as early as T4–5. Key strengths include explosive mana generation, redundancy in Eldrazi tutoring, and powerful interaction, but it has critical vulnerabilities to commander removal and stax effects.

Primer:

Core Strategy:
The deck aims to cast high-impact Eldrazi spells (e.g., Kozilek, Butcher of Truth, Ulamog, the Ceaseless Hunger) using fast mana (Mana Vault, Grim Monolith) and cost reducers (Herald of Kozilek, Urza's Incubator). Ulalek’s ability copies all spells/abilities whenever an Eldrazi is cast, amplifying triggers like Kozilek's Unsealing or Forsaken Monument. Infinite mana via Basalt Monolith + Forsaken Monument enables casting Eldrazi titans or activating Eye of Ugin to close games.

Mulligan Priorities:

• Keep hands with 2+ mana accelerants (e.g., Sol Ring, Urza’s Tower).
• Prioritize early cost reducers (Conduit of Ruin, Herald’s Horn) or tutors (Demonic Tutor).
• Avoid hands without ramp or color fixing.

Key Tips:

• Use Lightning Greaves to protect Ulalek and enable immediate copying.
• Chain Sanctum of Ugin triggers to tutor multiple Eldrazi.
• Deploy All Is Dust or Cyclonic Rift to reset boards before dropping threats.
• Infinite mana via Basalt Monolith + Forsaken Monument should fuel Ugin, Eye of the Storms’s -11 to cast the entire library.

Weaknesses:

Critical

• Relies on Ulalek for explosive value: 3+ removals cripple copying synergy.
• No instant-win outlets for infinite mana: Requires combat or incremental value.

Moderate

• Vulnerable to stax: Blood Moon disrupts Urza lands; Rule of Law slows casting.
• Slow recovery: Limited recursion outside Spawnbed Protector.

Minor

• Colorless restrictions: Some interaction (Null Elemental Blast) is situational.

Most Important Cards:

• Forsaken Monument
• Conduit of Ruin
• Demonic Tutor
• Urza's Incubator
• Eye of Ugin
• Basalt Monolith
• Herald of Kozilek
• Sanctum of Ugin
• Ugin, the Ineffable
• The One Ring

Attribute Ratings:

Speed: 8/10
Infinite mana by T3–4 enables T4–5 Eldrazi titans or Ugin’s game-ending -11.

Resilience: 6/10
Free counterspells (Fierce Guardianship) and protection (Lightning Greaves) mitigate disruption, but folds to repeated commander removal.

Consistency: 7/10
10+ tutors (e.g., Enlightened Tutor, Urza's Saga) and redundant cost reducers ensure Eldrazi access.

Interaction: 7/10
S-tier counters (Mana Drain) and board wipes (All Is Dust), but lacks graveyard/artifact hate.

Rating Justification:

The deck operates at cEDH-adjacent speed (T4–5 wins) with high consistency and interaction but lacks the resilience and compact wincons of true Tier 1 cEDH.

Power level: 7.0 - 7.5