Pidgeot

Mutate {3}{w}{w}(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.)
———{line}{line}{line}{line}{line}{line}{line}{line}{line}{line}{line}{line}{line}{line}
Flying
Whenever this creature mutates, destroy target
tapped creature an opponent controls. If it
mutated onto Pidgeotto, destroy all tapped
creatures your opponents control.