Pokémon S22E05 - No Stone Unturned!

Ash has decided to explore more of Melemele Island when he meets a trainer called Hau, who turns out to be the grandson of the Island Kahuna, Hala. He mentions that he and his partner Pokémon, Dartrix, are currently training for the Grand Trial and gets excited when he learns ash has already beaten it. After seeing Rowlet's evolved form, Ash challenges Hau to a battle. Who will win?