Skae'thnek, Life Evolver

: Humans you control may be targeted as though they weren't Humans for Mutate. Creatures you Mutate and cast with Mutate can't be countered.
+2: Target creature you control gets +X/+X and trample until end of turn here X is how many times it has mutated +1.
-8: Creatures you control that mutate this turn may trigger their Mutate abilities twice.