Mutate {U}{R}{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.)

Flying, lifelink, haste

Prowess, prowess, prowess. (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn. Each prowess ability triggers seperately.)