Pokémon Champion

Champion is a term which refers to Pokémon League winners who also defeats the whole Elite 4 of the respective league and becomes the top master of them. If another trainer who becomes the winner of the league defeats the Elite 4 and the Champion, the Champion gives their throne to the new Champion, as they become the Former Champion.

The only Champion that is introduced in Pocket Monsters is Aubrey who debuts in. As he states, he has been the Champion of Kanto League between the years 1985 and 1987. He had to withdraw from his position due to his health issues, however.