Dreamtail Heron
From Ikoria: Lair of Behemoths set
Dreamtail Heron
Creature — Elemental Bird
3/4
Mutate
(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.)
Flying
Whenever this creature mutates, draw a card.