Piplup swapped into Dawn

After an incident with Manaphy, Piplup and his trainer, Dawn got seperated after there bodies where swapped and, Piplup being Piplup, is scare out of his mind and is hiding it under a layer of screaming and bravado as he pretends to be Dawn and Commands Mamoswine in battle in order to re-unite with his trainer and body before the time-limit runs out and the swap becomes permanent.