Nicol Bolas the Supremacy

+2: Pay 2 life: Target opponent reveals his or her hand. You may choose a card from it and exile that card.
-2: Each opponent discards two cards, sacrifices a creature, and loses five life. You may draw up to two cards and gain five life.
-12: Destroy all creatures, then you may search your library for that many permanent cards and put them into play tapped.