Altar of Artemis

(Altar of Artemis is Red and Green.)
Whenever a creature you control damages a
permanent deal 1 damage to any target. Then put
a devotion counter on Altar of Artemis.
Then at the beginning of the end step if there are
3 devotion counters on Altar of Artemis you may
deal 5 damage to a creature you control. If you do
exile Altar of Artemis then return it to the battlefield transformed under your control.