Cytherea the First

Flying
At the beginning of your end step, create a Blood token for each player who lost life this turn.
Whenever Cytherea attacks, you may sacrifice two Blood tokens. If you do, you may put a Vampire
card from your hand onto the battlefield tapped and attacking. It gains indestructible until end of turn.

"I am the vengeance of the ten billion. I have come back home to kill the Emperor and burn his Houses."