Pokémon Season 18 Episode 83
The Pokémon School has a visiting teacher: Faba! When he shows off his invention that can reduce the size of objects for easy storage, it malfunctions, and Ash, Lillie, and Sophocles are shrunk into tiny heroes!
Serie: Pokémon
Episode Title: Dummy, You Shrunk the Kids!
Air Date: 2018-07-26