Totsuzenheni, the Mutant

0: Sacrifice a creature, put X loyalty counters on Totsuzenheni, where X is equal to the sacrificed creature's converted mana cost.
0: Totsuzenheni becomes an X/X mutant creature with trample and hexproof until end of turn, where X is equal to his loyalty.
0: Put X +1/+1 counters on each creature you control, where X is equal to Totsuzenheni's loyalty. Sacrifice Totsuzenheni.