15.VH1.jpg|Viking Horn 18.VH3.jpg|The path of the Viking horn 14.Reverse Grip.jpg|The grip required to perform Viking Horn. By using the racket with a reverse grip the Viking Horn shot, which curves before reaching the opponent's side. this attack is utilized by waiting for the opponents reaction and at the last second, striking back to the opposite side of the reaction. Making it extremely difficult for the user to return the shot. This is Kai's move however Atobe learns this move after watching Kai use it for more than 6 games straight.