Pokemon League in Pokemon Ultra Sun and Ultra Moon - Hold To Reset

After completing every trial available to you in Pokemon Ultra Sun and Ultra Moon, you will be able to access the Pokemon League.

20 Things Only Experts Know How To Do In Pokémon Ultra Sun & Moon

Pokémon the Series: Sun & Moon – Ultra Legends - TV on Google Play

Making a Living Dex: Part 4 - Generation Seven, ”Alola!”

The Elite Four - Pokémon League - Walkthrough

Pokémon League (Alola)/Title Defense - Bulbapedia, the community

Ultra Moon] Section 1 Completed! : r/ProfessorOak

How to Restart Pokemon Ultra Sun and Moon

20 Things Only Experts Know How To Do In Pokémon Ultra Sun & Moon

Controls - Getting Started - Gameplay