Sanpei

Sanpei is a character appearing in Pokémon the Series: XY.

Biography
Sanpei first appeared in A Rush of Ninja Wisdom! where he criticized Ash and Froakie at their training. He disappeared after that and when Ash found him again, Ash challenged him to a battle which he accepted. Ash used his Froakie against Sanpei's Frogadier. Frogadier managed to dodge many of Froakie's attack and at last defeated it.

After that Ash requested Sanpei to train Froakie for Quick Attack and Sanpei agreed. Using different techniques, he managed to teach Froakie Double Team. He also defeated Team Rocket in the process.

Sanpei returned in A Stealthy Challenge! with his newly-evolved Greninja.