Stream of Consciousness

• WWizards of the Coast2018-12-07
  Official Ruling
  Stream of Consciousness can’t be one of the target cards you shuffle into your library.
• WWizards of the Coast2018-12-07
  Official Ruling
  You may target zero cards in any graveyard and have a target player simply shuffle their library.
• WWizards of the Coast2018-12-07
  Official Ruling
  If you target any cards in a graveyard and those cards all become illegal targets, the target player simply shuffles their library.
• WWizards of the Coast2018-12-07
  Official Ruling
  You choose the target cards; the target player doesn’t. They may offer suggestions.

Rulings via Scryfall