Puppykins, Destined Apocalypse

Ward {2}
At the beginning of your end step, put a apocalypse counter on Puppykins, Destined Apocalypse then deal X damage to each other creature, where X is the number of apocalypse counters on Puppykins, Destined Apocalypse
The sky darkens at his presence and fire burns in his wake. He will be the end of you. — Cherry, Unforgiving Prophet