Overview:

Ulalek, Fused Atrocity leads an Eldrazi tribal deck focused on leveraging massive colorless creatures and token generation. The strategy revolves around ramping into game-ending Eldrazi threats while using Ulalek's copy ability to amplify spell/ability value. While capable of explosive turns with key pieces like Forsaken Monument and Eldrazi Temple, the deck lacks infinite combos and struggles with commander dependency.

Primer:

Core Strategy: This deck aims to dominate through overwhelming Eldrazi presence, using three key phases:

1. Ramp & Setup: Utilize lands like Eldrazi Temple and artifacts like Hedron Archive to accelerate into 6+ mana by turns 4-5. Ancient Stirrings and Herald's Horn ensure Eldrazi density.
2. Value Engine Activation: Cast Ulalek alongside mid-sized Eldrazi like Drowner of Hope to trigger copy effects, creating Scion/Spawn tokens and doubling removal/utility spells.
3. Endgame Overrun: Deploy bomb Eldrazi like Artisan of Kozilek and Ulamog's Dreadsire, protected by Eldrazi Monument. Use All Is Dust for one-sided board resets while building an unstoppable army.

Key Interactions:

• Sifter of Skulls + Eldrazi Monument creates sacrificial token fodder while maintaining board presence
• Forsaken Monument doubles mana from Wastes while buffing creatures
• Mystic Forge enables top-deck casting of Eldrazi threats
• Kozilek's Return graveyard recursion pairs with high-cost Eldrazi

Mulligan Priorities:

• Keep hands with 3+ lands including color-fixing (Command Tower, Unclaimed Territory)
• Prioritize early ramp (Sol Ring, Everflowing Chalice)
• Reject hands without colorless mana sources or Eldrazi payoffs

Weaknesses:

Critical:

• Heavy commander dependency (Ulalek removal cripples copy engine)
• No infinite combos for quick wins

Moderate:

• Limited graveyard recursion
• Weak to land destruction (relies on nonbasic colorless lands)

Minor:

• Some high-cost "win more" cards (Ulamog's Dreadsire)
• Minimal stack interaction

Most Important Cards:

• Forsaken Monument
• Eldrazi Temple
• Herald's Horn
• All Is Dust
• Eldrazi Monument
• Ugin, the Ineffable
• Kozilek's Return
• Sifter of Skulls
• Artisan of Kozilek
• Mystic Forge

Attribute Ratings:

Speed: 5/10

• Needs T4-5 to deploy meaningful threats, T7-8 for game-enders
• Lacks fast mana beyond Sol Ring

Resilience: 4/10

• Foldsto early commander removal
• Limited protection (only Eldritch Immunity)
• Slow recovery from board wipes

Consistency: 6/10

• 8+ ramp pieces and cost reducers
• Scry/surveil effects (Ugin's Insight)
• No tutors for key combo pieces

Interaction: 5/10

• Conditional removal (Warping Wail, Imprisoned in the Moon)
• Powerful but expensive wipes (All Is Dust)
• Minimal counterspells

Rating Justification:

This deck sits between Optimized Casual (5.0) and High-Power Casual (5.5). While it can explosively deploy threats through Ulalek's copy engine and has strong late-game potential, its T7-8 win clock and commander dependency prevent higher rankings. The lack of infinite combos and limited interaction keep it below Focused (6.0) tier. It outperforms precons through superior synergy but struggles against faster combo decks.

Power level: 5.0 - 5.5