Nermis, Lord of the Grave

: When Nermis, Lord of the Grave enters the battlefield, you draw X cards and you lose X life.
+1: Create a 2/2 black zombie creature token with haste. Sacrifice it at the beginning of the next end step unless you pay {1}
-7: Each opponents exiles the top 10 cards of their library. Until end of turn, you may cast those cards as long as they remain exiled.