Pokemon Best Wishes! - episode 63 - 18 Jan, 2012

Bianca trades her Shelmet for an Escavalier Proffessor Juniper caught as a Karrablast, but not without having a battle to record the data of Shelmet and Karrablast first. However, the battle is halted when a Klinklang with its gears stuck causes a sudden electrical wave comes from the cavern. After helping the Klinklang and concluding the battle, the trade is successful, but when Bianca wants to try out her new Pokémon, it evolved into an Escavalier for some reason. (Source: Wikipedia)