Ayara, Furnace Praetor

At the beginning of your precombat main phase,
you may sacrifice a creature, if you do, you draw
a card and lose 1 life.
At the beginning of each opponent's precombat
main phase, that player sacrifices a creature, if
they can't, they lose 1 life and discard a card.
Urabrask's disappearance was known by all of his minions, but before long, they had found a new leader.