Biollante, Plant Beast Form

Mutate [4][G/W][B][B] (If you cast this spell for its mutate cost, put it over/under target non-Human creature you own. They mutate into the creature on top plus all abilities from under it.)

Deathtouch, lifelink

Whenever this creature mutates, return any number of target creature cards with total power 10/less from your graveyard to the battlefield.