Piranha Bees

Mutate {5}{g/u}{r/g}{u/r} (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.)
Deathtouch, First Strike, Flying
"One of my finest creations... yet greatest regrets."
—Professor Quibbler