Ikoria: Lair of Behemoths · #287
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Mutate {3}{B} (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.) Menace (This creature can't be blocked except by two or more creatures.) Whenever this creature mutates, each opponent discards a card.
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Cavern Whisperer (IKO 287, foil) is a common black Creature — Nightmare from Ikoria: Lair of Behemoths with Menace and Mutate. It has a mutate-triggered ability that makes each opponent discard a card when it mutates, providing a hand-disruption effect tied to casting it for its mutate cost. Its role in a deck is as a disruptive midrange threat that benefits from being mutated onto or having other creatures mutated onto it to repeatedly trigger discard.
Catalog pricing data as of 5 May 2026, 00:41
