Vannifar, Seeker of Perfection

{2}{g}{u}{t}, Sacrifice two creatures you control: create an X/X blue and green mutant creature token where
X is the power of one creature and the toughness of the other with first strike if one of the creatures had first strike. The same is true for deathtouch, defender, double strike, indestructible, trample, flying, haste, hexproof, lifelink, menace, reach and vigilance.