Pokemon Season 9 Episode 431 Episode Title:Reversing the Charges.Episode Description:On their way to the next Battle Frontier location, the Battle Pike, Ash and friends encounter an angry Elekid who attacks any Pokémon in his way. After it attacks Ash, Brock, May and Max, May's egg becomes stuck in Elekid's horns and it runs off. Team Rocket encounters the same Elekid and gets separated from Mime Jr. Brock discovers that the Elekid has absorbed the electricity from nearby lightning storms and suggests that Pikachu do the same so that the two can battle to drain Elekid's energy. During Pickachu's and Elekid's battle, Team Rocket intervenes and James sees that Mime Jr. is with May, and May sees that her egg is with James. After they swap, Team Rocket continue with trying to steal Pikachu and Elekid. Phanpy battles Team Rocket, and Elekid with Pikachu's combined power destroys Team Rocket's mech and Elekid calms down. Team Rocket attack Phanpy but the battle causes Phanpy to evolve into Donphan, who blasts Team Rocket away with Hyper Beam. Event: Ash's Phanpy evolves into Donphan.