Divine Reckoning is a rare Sorcery card from Innistrad (ISD), collector number 10. Current market price: $0.75 (foil $6.44), TCGplayer market prices via Scryfall.
Each player chooses a creature they control. Destroy the rest. Flashback {5}{W}{W} (You may cast this card from your graveyard for its flashback cost. Then exile it.)