Pokemon Sun And Moon -dub- Episode 146 (SIMPLE)

It sounds like you're referencing the English dub of Pokémon Sun & Moon, specifically Episode 146.

• Sarah Natochenny as Ash Ketchum – Natochenny captures the bittersweet tone of a champion who must say goodbye.
• Laurie Hymes as Lillie – Her delivery during the scene where Lillie promises to "never be afraid again" is a standout.
• Rosie Reyes as Mallow – Provides levity as she tries to cook a goodbye feast.
• Rodger Parsons as the Narrator – His somber narration bookends the episode with a sense of finality.
• Alyson Leigh Rosenfeld as Bonnie (Cameo) – In a brief post-credit stinger, Bonnie calls from Kalos to congratulate Ash, linking the continuity.

The Pokémon: In a series-first, Ash does not take his Alolan team back to Oak’s lab. Instead, he leaves them with Professors Kukui and Burnet so they can stay in Alola and help as Ultra Guardians. Pokemon Sun and Moon -Dub- Episode 146

Ash: “This is Alola’s power! The power of everyone who believed in us! Pikachu, now! ” It sounds like you're referencing the English dub

3. Closing the Ultra Guardian Arc This episode effectively functions as the finale for the Ultra Guardians subplot. Throughout the season, Ash and his classmates donned tech suits to solve problems that standard Pokémon battles couldn't fix. Episode 146 emphasizes the team aspect of Sun & Moon, showing Ash relying on his classmates and the technology provided by the Aether Foundation to solve an interdimensional crisis. Sarah Natochenny as Ash Ketchum – Natochenny captures

Following his historic victory as the Alola League Champion, Ash decides to leave Alola to travel the world and see more of it. The episode focuses on the "respective departures" of the main cast as they move toward their individual futures: