Korag, Hateful Tyrant

Creatures you control have haste as long as you control 6 or more creatures
Whenever a creature you control attacks, you may put a blaze counter on target creature. That creature has "At the beginning of each upkeep, if there are 6 or more blaze counters on this creature, deal 6 damage to this creature"
Remove 6 blaze counters from target creature an opponent controls: add {r}{r}{r}