Herald of Devastation

Flying, Shroud, Indestructible
Whenever a permanent your opponent controls leaves the battlefield,place a +1/+1 counter on Herald of Devastation.
When Herald of Devastation has 10 or more +1/+1 counters choose one -
- Sacrifice Herald of Devastation, you gain 10 life
- Sacrifice Herald of Devastation, deal 10 damage distributed as you chose to creatures your opponent controls