Frozen Aether

• WWizards of the Coast2007-02-01
  Official Ruling
  Does not affect cards that phase in.
• WWizards of the Coast2007-02-01
  Official Ruling
  The appropriate permanents enter tapped. They do not enter untapped and then immediately tap, therefore they do not trigger any effects due to tapping.
• WWizards of the Coast2007-02-01
  Official Ruling
  It affects all opponents.
• WWizards of the Coast2007-02-01
  Official Ruling
  It applies to cards and tokens that are put onto the battlefield by an effect, as well as ones that are played from the player's hand.

Rulings via Scryfall