The Journalist from Another Region! - S16.E37

While on Harvest Island, Ash and his friends meet the Pokémon Reporter Alexa, who has come all the way from the Kalos Region with her Gogoat and Helioptile. She has come to investigate Harvest Island's fruit harvest festival, which the others realize has a Pokémon Sumo tournament. Ash, Iris, and Cilan enter Pignite, Pansage, and Dragonite in the tournament to win the grand prize Focus Band.