Zerak, Destroyer of Gods

Eminence
When a creature is sacrificed put a +1/+1 counter on Zerak, Destroyer of Gods for
each +1/+1 counter on Zerak, Destroyer of Gods, Zerak, Destroyer of Gods cost 1 less
to cast
Zerak, Destroyer of Gods Cost 2 less for
every time Zerak, Destroyer of Gods dies