Vafi, God of Endings

Indestructible, Deathtouch
Vafi can't attack or block unless it has four or more Quest Counters on it.
Each time a creature you control dies, put a Quest Counter on Vafi.
Creature Spells you cast cost {1} less.
{b/g}, Remove Three Quest Counters from Vafi: Choose one; *Each opponent sacrifices a creature they control, or *Choose target creature an opponent controls. They sacrifice that creature.