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Target player shuffles up to four target cards from their graveyard into their library.
If you target any cards in a graveyard and those cards all become illegal targets, the target player simply shuffles their library.
Stream of Consciousness can’t be one of the target cards you shuffle into your library.
You choose the target cards; the target player doesn’t. They may offer suggestions.
You may target zero cards in any graveyard and have a target player simply shuffle their library.
