From Bulbapedia, the community-driven Pokémon encyclopedia.
- If you were looking for the Trainer from Pokémon XD whose Trainer class is Grand Master, see Greevil.
A Grand Master is a type of Pokémon Trainer introduced in Pokémon: Let's Go, Pikachu! and Let's Go, Eevee!
When the player earns every Master Trainer title, the player can use the title of Grand Master in Link Battles.