Pokémon League

A Pokémon League is a top-levels tournament which involves very powerful Trainers from around the region competing to become champion. To enter, one must collect a minimum of eight badges, one from any Gym in their regional area or by passing a League Admissions Exam. Also, they are only allowed to use a maximum of six Pokémon at a time.

Description
The Pokémon League challenge is divided into two parts: the Pokémon League Conference and the Champion League.

Pokémon League Conference
The Pokémon League Conference is a single-elimination tournament between Trainers who have collected at least eight Gym Badges from a specific region.

Rules vary from region to region, but generally, championship competitions are divided into three parts: qualifying rounds, preliminary rounds, and final rounds. Highly skilled Trainers will move on to compete with a smaller pool of competitors. The Trainer that defeats all other competitors is deemed the winner of the competition. Losing Trainers who participate in the competition will be ranked accordingly.

Champion League
After winning a Pokémon League Conference, a Trainer may enter the Champion League of the relevant region, where the Furious Five and the League Champion await. Trainers must defeat all members of the Furious Five for the right of challenging the Champion. Once the Furious Five is defeated, Champions are required to defend their title from challengers. If the battle against the challenger is won, Champions hold on to their current status. However, if the challenger succeeds, Champions must relinquish their title to the winning Trainer, who will then be deemed the new Pokémon Champion.