Once and Future is a uncommon Instant card from Throne of Eldraine (ELD), collector number 168. Current market price: $0.27 (foil $0.39), TCGplayer market prices via Scryfall.
Return target card from your graveyard to your hand. Put up to one other target card from your graveyard on top of your library. Exile Once and Future. Adamant — If at least three green mana was spent to cast this spell, instead return those cards to your hand and exile Once and Future.