Lingering Souls is a uncommon Sorcery card from Innistrad Remastered (INR), collector number 30. Current market price: $0.29 (foil $0.28), TCGplayer market prices via Scryfall.
Create two 1/1 white Spirit creature tokens with flying. Flashback {1}{B} (You may cast this card from your graveyard for its flashback cost. Then exile it.)