Aclazotz, Betrayer of the Sun

Flying, deathtouch, lifelink.
Vampires have deathtouch and lifelink.
Whenever you sacrifice a creature, you may pay {3}, If you do, draw a card, then each opponent discards a card and sacrifices a creature.
{b}{b}{b}Sacrifice a vampire you control: Create X
1/1 black vampire creature tokens and lose X life,
where X is the sacrificed creatures power.