Slickshot Lockpicker is a uncommon Creature — Human Rogue card from Outlaws of Thunder Junction (OTJ), collector number 67. Current market price: $0.24 (foil $0.31), TCGplayer market prices via Scryfall.
When this creature enters, target instant or sorcery card in your graveyard gains flashback until end of turn. The flashback cost is equal to its mana cost. (You may cast that card from your graveyard for its flashback cost. Then exile it.) Plot {2}{U} (You may pay {2}{U} and exile this card from your hand. Cast it as a sorcery on a later turn without paying its mana cost. Plot only as a sorcery.)