Sorin, Soulweaver

+2: Search your library for a vampire creature card and put it into your hand, then shuffle your library
0: Sorin becomes an X/X vampire creature with lifelink and hexproof until end of turn where X is the number of loyalty counters on Sorin
-12: you gain an emblem with "vampire creatures you controle have +3/+3 lifelink, Flying, Firststrike, deathrouch and bloodthirst 5"