Mary, Nightmare Reborn

+1: Exile the top two cards of your library. You may play one of these cards this turn. Each opponenet loses 2 life if a card is exiled this way.
-2: Create two 2/2 black a red demon creatures with menace. Sacrifice them at the beginning of your next end step.
-8: Gain Emblem with "At the beginning of each opponenet's upkeep, they sacrifice a non demon creature, discard a card, and lose two life