Name: Cavern Whisperer Cost: 4B CMC: 5 Color: B CID: B Type: Creature -- Nightmare Pow/Tgh: 4/4 Rules Text: 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. Set/Rarity: Magic Online Promos common, Ikoria: Lair of Behemoths common Legality: Legal in gladiator, Legal in paupercommander, Legal in oathbreaker, Legal in legacy, Legal in duel, Legal in brawl, Legal in timeless, Legal in historic, Legal in commander, Legal in pauper, Legal in pioneer, Legal in vintage, Legal in penny, Legal in modern Price: $0.10 Foil price: $0.06