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How to fix Iris with a single episode in early journeys
>Ash and Go travel to Opelucid city to research something.
>They meet Iris, who reveals she's now the leader of the Opelucid Gym, consistent with what we saw in BW about Drayden wanting Iris to be the next gym leader
>Iris shows all her pokémon: Fraxure, Excadrill, Emolga, Dragonite, Gabite and Zweilous.
>Suddenly, Clair appears, she's in the PWC and wants to battle Iris
>Most of the episode is dedicated to the battle where Iris finally defeats Clair
>Alder watches the battle from the shadows. We see a flashback of Alder telling Drayden that he intends to retire and he sees potential in Iris, but he's not sure yet. He wants to test her so he invited Clair to Opelucid to see just how strong Iris has become
>Ash and Go leave after saying goodbye to Iris
>Alder shows up after they leave, he wants to train Iris and she accepts to become his pupil
BOOM
Next time she shows up the episode plays out pretty much the same as JN065.