Zasha, Voldaren Bloodsage

: Tap 3 untapped vampires you control: create a 2/2 black vampire creature token with flying.
+2: Vampires you control get +1/+1 and lifelink until end of turn.
-8: Search your library for up to 4 vampire cards and/or Sorin planeswalker cards and put them onto the battlefield under your control.