Dolarin, Bringer of the End

Whenever you exile a card, put a 1/1 black
nightmare creature token onto the battlefield
under your control. This ability can trigger no
more than 7 times from a single source.
Sacrifice 3 creatures: Either draw 2 cards or the
next card you cast has Cascade.
"I will bring a devastating apocalypse to this world.
When the ashes settle, I will rule what remains."