Treacherous Greed

As an additional cost to cast this spell, sacrifice a creature that dealt damage this turn.
Draw three cards. Each opponent loses 3 life and you gain 3 life.

Murders at Karlov Manor

Murders at Karlov Manor Promos

You can sacrifice any creature you control that dealt damage this turn to pay Treacherous Greed's additional cost, even if the permanent it dealt damage to is no longer on the battlefield or the player it dealt damage to is no longer in the game.