She made her debut in Foster Against Adams, Josie used Duosion as her final Pokemon against Nathan, when Duosion took major damage and fell to the ground, as the referee was about to declare Duosion unable to battle, Duosion gets back up with a vengeance and learning Recover as well as evolving into Reuniclus. With newfound power, she was able to win with Focus Blast and Psychic, allowing Josie to move on to the finals.
In Jon vs Josie! The Finals! (Part 1), Josie will use Reuniclus again in its battle with Jon. Reuniclus manages to immobilize one of Jon's Pokémon with Attract confirming her gender to be female which Josie mentioned to Jon, despite being poisoned and having Magic Guard in effect and defeating one of Jon's Pokémon, Josie was forced to switch her out. She was used again after her Arcanine was defeated, but despite the damage she took from its previous battle, she was defeated with one move.
Josie used Reuniclus in the Galar League while the Psychic Terrain was up after her Indeedee was defeated by Heracross, after a successful Thunderbolt, she finishes the Single Horn Pokemon off with her newest attack aka Expanding Force.
