Archipelagore - Ikoria: Lair of Behemoths - 283

Creature — Leviathan

Mana Cost: {5}{U}{U}

Mutate {5}{U} (If you cast this spell for its mutate cost, put it over or under target non-Human creature you own. They mutate into the creature on top plus all abilities from under it.)
Whenever this creature mutates, tap up to X target creatures, where X is the number of times this creature has mutated. Those creatures don't untap during their controller's next untap step.

P/T: 7/7

Uncommon · Ikoria: Lair of Behemoths · #283 (IKO)

Illustrated by Kev Walker