Edrice, Wished Nevermore

0: Each player mills 4 cards. You draw a card for each creature card milled this way. Until your next upkeep, you can't gain life.
-1: You lose 7 life. Then for each time you've used this ability, put a 7/2 black Horror creature token with Infect onto the battlefield tapped.
-5: For two upkeeps after your next one, you can't lose the game and you can't gain life. Your life total becomes 0. Skip your next three draw steps.