Sesset, Spirit of Grief

+1: Target player puts the top three cards of their library into their graveyard.
0: Sesset becomes a copy of target creature card in an opponent's graveyard until end of turn. Prevent all damage dealt to Sesset this turn.
-8: Each opponent puts the top X cards of their library into their graveyard, where X is the otal combined power of creature cards in their graveyard