Ferith, Cleric of Death

+2: Target player loses 1 life for each card with necrosis in your graveyard. You gain 1 life for each card with necrosis on the battlefield.
-6: You get an emblem with "At the beginning of your upkeep, target card without necrosis in your graveyard gains necrosis."
-X: Look at the top X cards of your library, put any number of them into your graveyard and the rest on the bottom of your library in a random order.