The Leader Pokémon is Dekagoose! : Season 20 Episode 9
Aired: May 19th, 2017
Raticate and Rattata are laying waste to the island's fields. Ash then meets Hala, the Kahuna of Melemele Island. Ash tells Hala he will be attempting the Island Trial. However, Hala then asks him a question and tells him he can only attempt the Island Trial after answering it. Ash is initially unsure what to answer, but manages to find the answer to Hala's question thanks to his classmates' help. And then he's finally given a trial by Hala.
