Darkeater Midir

Flying, Trample

Whenever you spend {b}, Darkeater Midir gains +1/+0 until the end of the turn.

Whenever Darkeater Midir enters or attacks, you gain 1 Curse Counter. (During a player's upkeep, that player exiles X cards from the top of their library face down, where X is the amount of Curse Counters that player has. Then that player removes 1 Curse Counter.)