Adwyn, Usurper of Greystone

Other Vampires, Zombies, and Skeletons you
control get +1/+1.
At the beginning of each end step, choose one—
•Sacrifice a creature and create a Blood token.
•Return target Zombie, Skeleton or Vampire
with mana value 1 from your graveyard to play.
"I will buy my army and I will pay for it with blood"
—Adwyn, Usurper of Greystone