Pokemon Season 13 - Episode 626 – Piplup, Up and Away!

Ash brings out his Gible to train its Draco Meteor. Every attempt by Gible falsely hits Piplup. Piplup makes mental assumptions of how Dawn will punish Gible and hug Piplup. Instead, Dawn encourages Gible, which in turn makes Piplup left out so it leaves the group. Using this opportunity, Jessie and James plan to use Piplup to get Pikachu. In the end, Piplup realizes Dawn believes in Piplup, so it joins the group again. Piplup also learns Hydro Pump in this episode.