Sacred Fire is a uncommon Instant card from Innistrad: Midnight Hunt (MID), collector number 239. Current market price: $0.27 (foil $0.24), TCGplayer market prices via Scryfall.
Sacred Fire deals 2 damage to any target and you gain 2 life. Flashback {4}{R}{W} (You may cast this card from your graveyard for its flashback cost. Then exile it.)