Shrouded Lore is a uncommon Sorcery card from The List (PLST), collector number PLC-91. Current market price: $0.25, TCGplayer market prices via Scryfall.
Target opponent chooses a card in your graveyard. You may pay {B}. If you do, repeat this process except that opponent can't choose a card already chosen for Shrouded Lore. Then put the last chosen card into your hand.