S10·E31 The Grass-Type is Always Greener!

After Burmy evolved into Mothim, Ash and co continue through the Eterna Forest where, along the way, they meet Gardenia, an overenthusiastic fan of Grass-type Pokémon. Ash declares a battle with her and she accepts. Will Ash win against this Grass Geek, and could she be the only one?