Cthulu, The Great Dreamer

+2: Search your library for a card called R'Lyeh. Target opponent sacrifices a creature or loses 6 life or discards 2 cards.
-2: Target player gets an insanity counter, sacrifices a permanent, loses 3 life, and discards a card.
-13: All opponents get 6 insanity counters. At the beginning of your next upkeep you win the game.