Starving Revenant (The Lost Caverns of Ixalan)

Creature Ñ Spirit Horror - When this creature enters, surveil 2. Then for each card you put on top of your library, you draw a card and you lose 3 life.
Descend 8 Ñ Whenever you draw a card, if there are eight or more permanent cards in your graveyard, target opponent loses 1 life and you gain 1 life.