Mariae, Combiner of Beasts

Player
{2}{g}{u}, Exile two creatures you control: Create a 2/2 green and blue creature token with Trample that has the same creature types as the creatures exiled, except it also is a Mutant. Then put +1/+1 counters on it, where X is combined power of the creatures exiled.
Mana Pool - {g/u}