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Ulalek, Fused Atrocity

Legendary Creature — Eldrazi

Devoid (This card has no color.)
Whenever you cast an Eldrazi spell, you may pay {C}{C}. If you do, copy all spells you control, then copy all other activated and triggered abilities you control. You may choose new targets for the copies. (Mana abilities can't be copied.)

CMC
5
Mana cost
{C/W}{C/U}{C/B}{C/R}{C/G}
Color identity
BGRUW
Rarity
mythic
Set
Modern Horizons 3 Commander
Price
—
EDHREC rank
#4038
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Ulalek, Fused Atrocity card art
Ulalek, Fused Atrocity turns every Eldrazi cast into a trigger storm — when it copies spells, it copies all of them at once, meaning a single Eldrazi dropped with Ulalek on board can chain into a board-wiping, hand-emptying, annihilator-stacking avalanche. The cost is real: five colorless and five generic mana for a commander that does nothing the turn it enters without another Eldrazi spell ready to follow it.

Format Analysis

Where it lives, where it can’t

FormatVerdict
commander legal
legacy legal
modern not legal
pioneer not legal
standard not legal
vintage legal
pauper not legal
oathbreaker legal

Commander is the only format where Ulalek, Fused Atrocity is genuinely at home — the singleton rule and 100-card density make stacking Eldrazi spells in a single turn a deliberate deck-building goal rather than an accident, and the longer games give you time to assemble the mana needed to make the copy trigger backbreaking. Legacy and Vintage are technically legal but offer no meaningful shell; ten-mana commanders don't fit in formats built around ending games on turns one through three. Oathbreaker is legal but the 20-life starting total makes a ramp-heavy Eldrazi plan harder to execute before the game ends.

Key Combos

Combo lines featuring this card

8,255 decks
Ulalek, Fused AtrocityGlaring FleshrakerRoaming Throne

Ulalek, Fused AtrocityGlaring FleshrakerRoaming Throne

Infinite LTB; Infinite ETB; Infinite sacrifice triggers; Infinite death triggers; Infinite damage; Infinite creature tokens; Infinite copies of abilities you control on the stack; Infinite copies of a specific creature

View on Commander Spellbook ↗

Price Context

Current price

unknown tier

Current pricing data for Ulalek, Fused Atrocity isn't available in this snapshot, so check Scryfall or TCGPlayer for a live number before buying. Given its narrow Commander-specific application, it's unlikely to carry a significant premium outside of spike demand from Eldrazi build-arounds.

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Sources

Mentioned

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Updated . Data from Scryfall, EDHREC, and Commander Spellbook.