Deathtouch, vigilance

Raven Bloodworth, Betrayer, gets +1/+0 for each zombie and vampire you control.

{2}{b}{b}, {t}: Create a 2/2 black zombie creature token.

{2}{w}{b}, {t}: Create a 1/1 white and black vampire creature token with lifelink.

{4}{b}{r}, {t}:Create a 3/3 black and red graveborn creature token.