Research the Deep is a uncommon Sorcery card from Morningtide (MOR), collector number 46. Current market price: $0.37 (foil $9.95), TCGplayer market prices via Scryfall.
Draw a card. Clash with an opponent. If you win, return Research the Deep to its owner's hand. (Each clashing player reveals the top card of their library, then puts that card on their choice of the top or bottom. A player wins if their card had a greater mana value.)