Witness the Future is a uncommon Sorcery card from Innistrad: Crimson Vow (VOW), collector number 90. Current market price: $0.31 (foil $0.31), TCGplayer market prices via Scryfall.
Target player shuffles up to four target cards from their graveyard into their library. You look at the top four cards of your library, then put one of those cards into your hand and the rest on the bottom of your library in a random order.