Grand Trial Showdown (Pokémon: Graphic Collection)

"First, Ash joins the Masked Royal onstage for a fight against the Revengers! Then, Ash visits Ula'ula Island to challenge the island kahuna, Nanu, to a grand trial. But Nanu doesn't think Ash and his Pokâemon pals are ready for it. Can Ash prove his skill-and ultimately win the battle?"--