BW065: Evolution Exchange Excitement!

Episode Plot
After the events of the last episode Bianca is now ready to trade her Shelmet for a Karrablast Professor Juniper caught. The trade was successful but when Bianca wanted to try out her new Pokémon, it evolved into an Escaviler for some reason. What happened to make it possible, why won't Bianca's new Pokémon obey her and why is there a Klinklang in the Chargestone Cave?

Debuts
Humans Pokémon Items
 * Cedric Juniper
 * Klinklang
 * Trade Machine V 5.0

Trivia

 * The way Shelmet and Karrablast evolve sounds near similar to another method of evolution explained in IL066: The Evolution Solution.
 * Karrablast would use the shell Shelmet discards as armor as an Escaviler, whereas, as an Accelgor, Shelmet would gain incredible speed from not carrying the shell anymore.
 * Bianca had the same problem that Ash had with his Charmeleon in IL044: The Problem with Paras and Dawn had in DP106: A Breed Stampede!: Her newly evolved Escaviler was out of control and wouldn't obey her.