Yuliana, Angel of Blood

Flying, deathtouch, vigilance, lifelink
Whenever Yuliana, Angel of Blood deals combat damage to a player you may tap a card that player controls for each Angel creature you control.
Cards tapped in this way do not untap during
their controller's untap step. Then Yuliana deals
X damage to each creature you don't control
where X is the number of Vampire creatures you control.
Some angels prefer prey to praying.