Trial and Tribulation!

After completing the only Island Trial on Melemele Island, Ash decides to face off against the Island Kahuna Hala in the Grand Trial. Hala uses powerful Fighting-type Pokémon and moves causing Ash some trouble as he currently only has Pikachu and Rowlet. During battle, Hala unleashes the All-Out Pumelling Z-Move causing Ash to retaliate with a Z-Move of his own. Will he be able to win the battle?