What are the rulings for Shrouded Lore card?
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0. The spell has no knowledge of cards chosen for other spells named Shrouded Lore.
1. You target an opponent when you cast Shrouded Lore. The opponent chooses a card in your graveyard as Shrouded Lore resolves. After that choice is made, you’re given the option to pay {B}. If you do, the targeted opponent must choose a different card, if there is one. (If there isn’t one, this part is skipped.) Then you’re given the option to pay {B} again. As long as you keep paying {B}, the process continues. As soon as you decline to pay {B}, the last card that was chosen by the opponent is put into your hand.
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