Deadly Allure is a uncommon Sorcery card from Dark Ascension (DKA), collector number 58. Current market price: $0.23 (foil $1.13), TCGplayer market prices via Scryfall.
Target creature gains deathtouch until end of turn and must be blocked this turn if able. Flashback {G} (You may cast this card from your graveyard for its flashback cost. Then exile it.)