Tyrael, Archangel of Justice

Tyrael enters the battlefield with four divine
counters.
If Tyrael would block or become blocked by a red
or black creature, destroy that creature. It cant be regenerated. When a creature gets destroyed this
way, remove a divine counter. When the last
divine counter is removed this way, destroy up to
six target creatures your opponents control and
then put four divine counters on Tyrael.