Edgar's Awakening is a uncommon Sorcery card from Innistrad: Crimson Vow (VOW), collector number 110. Current market price: $0.22 (foil $0.36), TCGplayer market prices via Scryfall.
Return target creature card from your graveyard to the battlefield. When you discard this card, you may pay {B}. When you do, return target creature card from your graveyard to your hand.