Pokémon - Season 2 - Eps 19: The Mandarin Island Miss Match
The group descend on Mandarin Island where Ash's arrogance emerges due to the fact that he's won every single battle he's had since arriving on the island but upon meeting Prima, a member of the Elite Four and challenging her to a battle, Ash starts to realize that he may have made a grave mistake.
About Pokémon

Title: Pokémon
First Air Date: 1997-04-01
Last Air Date: 2023-03-24
Status: Ended
Rating: 7.9/10 (from 1914 votes)
Language: JA
Seasons: 26
Total Episodes: 1235
Network: TV Tokyo TV Aichi TVQ TV Osaka TVh TSC
Genres: Animation, Action & Adventure, Sci-Fi & Fantasy
Production Companies: Shogakukan Production, TV Tokyo, OLM, Shogakukan-Shueisha Productions, SOFTX, TV Tokyo Medianet
Synopsis
Join Ash accompanied by his partner Pikachu, as he travels through many regions, meets new friends and faces new challenges on his quest to become a Pokémon Master.
Cast

Rica Matsumoto
Satoshi (voice)

Ikue Otani
Pikachu (voice)

Daiki Yamashita
Gou (voice)

Kenyu Horiuchi
Narrator (voice)