Ulalek is a colorless-ramp Eldrazi deck. It builds huge amounts of colorless mana through Tron lands, Monoliths, untappers and Kinnan, then casts giant Eldrazi titans whose cast triggers get copied by Ulalek, by Echoes of Eternity and by Abstruse Archaic. Each Eldrazi spell cast with Ulalek out lets it pay {C}{C} to copy every spell and ability on the stack, so draw-four, exile-two, mill-half and tutor triggers resolve several times. Flash enablers and cost reducers let it chain several titans in one turn. How it wins: It resolves multiplied titan cast triggers and swings with annihilator Eldrazi to strip opponents' boards and libraries, or it assembles Ulalek with Glaring Fleshraker and Echoes of Eternity for infinite Spawn tokens and ping damage. Key roles: - Colorless mana engine: Tron lands, Monoliths, untap effects and mana doublers produce the large colorless pools that hard-cast titans and pay Ulalek's {C}{C} repeatedly, and some of them loop into near-infinite mana. (Grim Monolith, Kinnan, Bonder Prodigy, Forsaken Monument) - Cast-trigger titans: Eldrazi whose value comes on cast, so copying them with Ulalek wins even if the creature itself is answered. (Ulamog, the Ceaseless Hunger, Kozilek, Butcher of Truth, Ulamog, the Defiler) - Copy and trigger multiplication: Ulalek, plus permanents that copy colorless spells or abilities and double colorless triggers, compounding every Eldrazi cast. (Echoes of Eternity, Abstruse Archaic, Ugin, Eye of the Storms) - Spawn damage combo: Fleshraker turns colorless casts into Spawn and pings, and with Ulalek and Echoes copying the triggers it loops into unlimited tokens and damage. (Glaring Fleshraker, Echoes of Eternity, Chittering Dispatcher) - Cost reduction and instant-speed casting: Discount and flash effects let titans come down early, or on opponents' turns, to fuel extra Ulalek triggers. (Eye of Ugin, Darksteel Monolith, Liberator, Urza's Battlethopter) - Colorless-favoring board control: One-sided sweepers and exile effects punish colored permanents while the colorless board survives. (All Is Dust, Ugin's Binding, Ugin, the Ineffable)

Ulalek, Fused Atrocity decklist

• Abstruse Archaic
• Breaker of Creation
• Chittering Dispatcher
• Glaring Fleshraker
• It That Betrays
• Kinnan, Bonder Prodigy
• Kiora's Follower
• Kozilek, Butcher of Truth
• Kozilek, the Great Distortion
• Liberator, Urza's Battlethopter
• Nightshade Dryad
• Nulldrifter
• Runadi, Behemoth Caller
• Sire of Seven Deaths
• Skittering Cicada
• Sowing Mycospawn
• Spellskite
• Ulamog, the Ceaseless Hunger
• Ulamog, the Defiler
• Void Winnower
• Wastescape Battlemage
• Academy Ruins
• Bayou
• Breeding Pool
• Cascading Cataracts
• Cavern of Souls
• City of Brass
• Command Tower
• Detection Tower
• Eldrazi Temple
• Emergence Zone
• Endless Sands
• Eye of Ugin
• Maze of Ith
• Minamo, School at Water's Edge
• Misty Rainforest
• Overgrown Tomb
• Polluted Delta
• Sanctum of Ugin
• Scorched Ruins
• Spire of Industry
• Tropical Island
• Ugin's Labyrinth
• Underground Sea
• Urza's Cave
• Urza's Factory
• Urza's Mine
• Urza's Power Plant
• Urza's Saga
• Urza's Tower
• Urza's Workshop
• Verdant Catacombs
• Vesuva
• Watery Grave
• Winding Canyons
• Yavimaya Coast
• Yavimaya, Cradle of Growth
• All Is Dust
• Demonic Tutor
• Fabricate
• Hour of Promise
• Scapeshift
• Sea Gate Restoration
• Splendid Reclamation
• Toxic Deluge
• An Offer You Can't Refuse
• Crib Swap
• Crop Rotation
• Cyclonic Rift
• Eldritch Immunity
• Frantic Search
• Heroic Intervention
• Swords to Plowshares
• Ugin's Binding
• Vampiric Tutor
• Basalt Monolith
• Chromatic Orrery
• Crucible of Worlds
• Darksteel Monolith
• Erratic Portal
• Everflowing Chalice
• Forsaken Monument
• Grim Monolith
• Mana Vault
• Sol Ring
• Thran Dynamo
• Unwinding Clock
• Urza's Incubator
• Voltaic Key
• Echoes of Eternity
• Eldrazi Conscription
• Leyline of Anticipation
• Mystic Remora
• Rhystic Study
• Sylvan Library
• Unstoppable Plan
• Tezzeret the Seeker
• Ugin, Eye of the Storms
• Ugin, the Ineffable