Sorin, Vampire King

Indestructible, Hexproof, Lifelink
During your upkeep, pay {b}{b} or sacrifice Sorin, Vampire King
At the beginning of your upkeep, you may search your library for a Vampire card and
put it into your hand. If you do, shuffle
your library.
Black Vampires you control get +1/+0 and Indestructible