Skin Invasion // Skin Shedder

• WWizards of the Coast2016-04-08
  Official Ruling
  The controller of Skin Invasion, not the controller of the enchanted creature, returns Skin Invasion to the battlefield transformed.
• WWizards of the Coast2016-04-08
  Official Ruling
  If, during your declare attackers step, the enchanted creature is tapped or is affected by a spell or ability that says it can't attack, then it doesn't attack. If there's a cost associated with having that creature attack, its controller isn't forced to pay that cost, so it doesn't have to attack in that case either.
• WWizards of the Coast2016-04-08
  Official Ruling
  The enchanted creature's controller still chooses which player or planeswalker that creature attacks.

Rulings via Scryfall