Adora, Mistress of Death

Double strike, reach
Whenever Adora, Mistress of Death deals
combat damage to a player, that player exiles
the top card of his or her library. You may play
cards exiled with Adora, Mistress of Death.
{b/r}{w/b},{t}: Adora, Mistress of Death gains a
+1/+1 counter.
The Mistress only loves death, Grimlore merely offers
her what she desires. That is why she's here.