Elzalath the Forsaken

When Elzalath the Forsaken enters the
battlefield, draw a card for each opponent
unless each opponent sacrifices a permanent.
{t}, Sacrifice a creature you control: Target
instant or sorcery in your graveyard gains
Flashback until the end of turn.
"While her flesh decayed, her mind blossomed."
—Pekeporo, the Jade Emperor