Cleansing Inferno

Cleansing Inferno can't be countered.
Cleansing Inferno deals 3 damage to each creature on the battlefield, and each other player. Until end of turn, all creatures lose indestructible. Creatures who die this way, are exiled, instead.
"Where men gather a bustle of chaos ensues, I'd save them all if I could." -Keldorn Firecam