Leven Fen, Plague Doctor

: When a player casts a black spell, draw a card and discard a card. Gain life equal to the number of creatures in all graveyards
+4: Create three 1/2 Black Plague Doctors with Lifelink. Each other player discards a card for each creature in all graveyards
-13: Put the top card of your library into your graveyard until a creature is revealed. Put that creature into your hand. Repeat this process 2 times