Bentro, Broker of Gluttony

Whenever a player loses life, that player may draw a card.
Whenever another creature dies, its controller gains 2 life. Then if that player has 50 or more life, that player discards 3 cards and sacrifices a permanent. If that player has 100 or more life, that player sacrifices half the number of permanents he or she controls, rounded down and discards his/her hand. If that player has 200 or more life, he or she loses the game.