Yawgmoth, Lord of Flesh

+1: Each player sacrifices a creature. If that creature was green or white, it's controller loses 3 life.
-2: You may cast a card from your graveyard without paying its mana cost. Instead, lose life equal to its mana cost and then exile it.
-7: Each non-Swamp card in play gets a plague counter. Anytime a player taps a card with a plague counter they lose 3 life.