Boat-Muncher

Mutate {g/u}{g/u}{g/u}{g/u} If you cast a 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 enters the battlefield or
mutates, you may destroy target artifact.
"Tastes like chicken." -Boat-Muncher, probably.