Prime Synrix, The World

+1: Discard a card. Search your library for a card with converted mana cost 1 less than the discarded spells mana cost. Play it without mana cost.
+2: Sacrifice a creature, gain life equal to double the creatures power.
-10: Sacrifice all creatures on the field. You gain life equal to the sacrificed creatures power. Your opponent takes damage equal to the life gained.