"Saisei, counter with your own Shadow Ball! Mega Ring activate!" Shiranui activated the keystone on his Mega Ring and an orb surrounded Saisei. The orb shattered to reveal a Mega Mewtwo Y—smaller, but more powerful. Saisei conjured its Shadow Ball and launched it at Mew's attack. The two attacks collided and the Mega Mewtwo Y put its psychic powers to work.