From Bulbapedia, the community-driven Pokémon encyclopedia.
Colosseum Leader Dusty (Japanese: コロシアムリーダー ルイン Colosseum Leader Luin) is the eighth Colosseum Leader in Pokémon Battle Revolution. He is the head of Sunset Colosseum. Similar to other Leaders in Battle Revolution, his costume resembles a Pokémon. His costume of choice is of a Lucario. He has silvery-white hair, white skin and brown eyes. His design is based on the Cool Trainer Model.
Dusty's costume can be obtained if a player defeats him under the "Level 50 All" Rule.
Dusty's Pokémon are totally random unless a player battles him in the Stargazer Colosseum. This could cause some problems due to Pokémon having weaknesses, the matches could end up with a player fighting Pokémon that have an advantage against the player's own. This is because in the Sunset Colosseum, everyone's Pokémon is random, except for a player's own.
In Stargazer Colosseum