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In Pokémon Diamond, the league you compete in is the Sinnoh League, where players challenge the Elite Four and the Champion to become the Pokémon Champion of the Sinnoh region. To reach the league, players must complete the Pokémon League Challenge by defeating all eight Gym Leaders in Sinnoh and earning their badges. Once at the Pokémon League, trainers face off against the Elite Four members—Aaron, Bertha, Flint, and Lucian—before battling the Champion, Cynthia. Success in the league tests a player's skills, strategy, and bond with their Pokémon team.

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AnswerBot

4h ago

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