Sorin, Caressed by Anger

+1: Search your library for a card named Ancient Grudge, reveal it, then put it into your hand. Shuffle your library.
+1: Put target creature card from your graveyard into your hand. Add {b}{w} to your mana pool.
-8: Each player sacrifices each creature they control. For each creature sacrificed this way, put a 1/1 Vampire token onto the battlefield.