Malloran, Apex of Perfection

Mutate {5}{w/b}{u}{u} (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, Lifelink
Whenever this creature mutates, look at the top
three cards of target player's library and put
them back in any order, draw three cards, tap or
untap up to three target permanents, and target opponent loses three life.