Scizor

Mutate {4}(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.)
---{dash}{dash}{dash}{dash}{dash}{dash}{dash}{dash}{dash}{dash}{dash}{dash}{dash}{dash}{dash}{dash}{dash}{dash}{dash}{dash}{dash}{dash}{dash}{dash}{dash}{dash}{dash}{dash}{dash}{dash}{dash}{dash}{dash}
Flash, first strike
Whenever this creature mutates, if it mutated
onto Scyther, put a +1/+1