Overview:

This five-color Eldrazi deck revolves around Ulalek, Fused Atrocity, leveraging its ability to copy spells and triggered abilities when casting Eldrazi. The strategy focuses on ramping into massive Eldrazi threats with annihilator, token generation, and cost reduction, while doubling triggers for explosive value. Ulalek acts as a critical enabler, amplifying the impact of every Eldrazi cast. The deck aims to overwhelm opponents through attrition (annihilator triggers), combat with colossal creatures, and value engines like Kindred Discovery or Kozilek's Unsealing. Secondary synergies include token-based mana acceleration and recursion tools like Spawnbed Protector.

Primer:

Core Strategy Execution:

1. Early Ramp (Turns 1-4): Prioritize mana rocks (Sol Ring, Thran Dynamo, Chromatic Lantern) and cost reducers (Urza's Incubator, Herald's Horn). Use lands like Eldrazi Temple and Eye of Ugin to accelerate Eldrazi deployment.
2. Mid-Game Setup (Turns 3-6): Cast mid-sized Eldrazi (e.g., Conduit of Ruin, Glaring Fleshraker) to trigger Ulalek’s copy ability. Use Roaming Throne (naming Eldrazi) to double triggers. Tutor for key threats with Demonic Tutor or Eye of Ugin.
3. Late-Game Domination (Turns 6+): Deploy game-ending threats like Ulamog, the Defiler, Pathrazer of Ulamog, or Kozilek, the Great Distortion. Activate Ulalek’s ability to copy annihilator triggers, Sire of Stagnation draws, or Deepfathom Skulker’s card advantage. Overwhelm opponents with annihilator or combat damage.

Mulligan Priorities:

• Ensure at least 2-3 mana sources (including color-fixing like Command Tower or pain lands).
• Prioritize early ramp (Sol Ring, Urza's Incubator) and a mid-game Eldrazi.
• Avoid hands lacking ramp or color-fixing.

Key Tips:

• Use Roaming Throne + Ulalek’s ability to quadruple triggers (e.g., annihilator 3 becomes annihilator 12).
• Protect Ulalek with Lightning Greaves or Eldritch Immunity.
• Sacrifice Eldrazi Spawn/Scion tokens for mana to fuel Ulalek’s {C}{C} copy ability.
• All Is Dust resets colored permanents while sparing your colorless board.

Weaknesses:

Critical

• Board Wipes: Wrath of God-effects cripple the board state; limited recursion beyond Spawnbed Protector.
• Stax Lockdowns: Cursed Totem/Null Rod shuts down mana rocks and activated abilities.

Moderate

• Fast Combo Decks: Struggles to interact with non-creature combo wins (minimal counterspells).
• Color-Intensive Mana Base: Pain lands and tapped duals slow early turns.

Minor

• Graveyard Hate: Disrupts Artisan of Kozilek and Spawnbed Protector.
• Fliers: Limited evasion beyond Eldrazi Monument.

Most Important Cards:

• Ulalek, Fused Atrocity (Copy engine for triggers/spells)
• Roaming Throne (Doubles Eldrazi triggers)
• Urza's Incubator (Critical cost reduction)
• Eye of Ugin (Tutor for Eldrazi finishers)
• All Is Dust (One-sided board wipe)
• Kozilek, the Great Distortion (Card draw + disruption)
• Conduit of Ruin (Tutor + cost reduction)
• Eldrazi Monument (Evasion + protection)
• Demonic Tutor (Flexible search)
• Ulamog, the Defiler (Annihilator scaling + exile)

Attribute Ratings:

Speed: 6/10

• Threatens T7-8 wins via annihilator or combat, but lacks fast combo lines.

Resilience: 5/10

• Limited protection/recursion; relies on rebuilding with ramp after wipes.

Consistency: 7/10

• Strong tutoring (Demonic Tutor, Eye of Ugin) and card draw (Kindred Discovery).

Interaction: 5/10

• Spot removal (Path to Exile, Ugin's Binding) and All Is Dust, but minimal stack interaction.

Rating Justification:

This deck’s explosive late-game potential and annihilator pressure align with Focused tiers (T7-8 wins), but its reliance on combat and vulnerability to disruption caps its ceiling. The combination of strong ramp and tutoring elevates consistency, but slower interaction keeps it below optimized tiers.

Power level: 6.0 - 6.5