Gut-Wrenching Decision

When you cast this card, your opponent may
choose to sacrifice two creatures. If they do not,
you may put a creature or planeswalker from
any graveyard onto the battlefield under your
control, and you gain life equal to that card's
converted mana cost.
The Draco-Lich was nearly falling apart,
and yet it held Sparky and Dragonsharks' lives
in its decrepit claws.