Brewer, Demon Mother

Lifelink, Delve (Each card you exile from your graveyard while casting this spell pays for {1})
Brewer enters the battlefield with X demonic counters on it.
{p/b}, Remove a demonic counter from Brewer: Choose one —
• Each opponent sacrifices a creature.
• Each opponent reveals his/her hand, you choose a card from each hand. Those opponents discards those cards.