Abandon the Post is a common Sorcery card from Innistrad: Double Feature (DBL), collector number 127. Current market price: $0.26 (foil $0.32), TCGplayer market prices via Scryfall.
Up to two target creatures can't block this turn. Flashback {3}{R} (You may cast this card from your graveyard for its flashback cost. Then exile it.)