XY139: Facing the Needs of the Many!

- (さらばサトシゲッコウガ！クセロシキの逆襲) is the 46th episode of Pokémon the Series: XYZ.

Synopsis
Xerosic somehow manages to escape and challenges Ash, but he and his Greninja soon begin to realize the power they contain might be ready to fade away, possibly for good.