When Starving Revenant enters the battlefield,
surveil 2
(Look at the top two cards of your library, then put any number of them into your graveyard and the rest on top of your library in any order.). Then for each card you put on top of your library, you draw a card and you lose 3 life.
Descend 8 — 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.