Indigo Plateau (Kanto) - PokeMMO Wiki

The front room doubles as a Pokémon Center and Pokémon MART, allowing Trainers to prepare themselves and their Pokémon for the gauntlet ahead. While a Trainer's team is fully restored between battles, the Trainer will not be permitted to return to the Pokémon Center unless they are defeated. This gauntlet can be attempted as many times as necessary to become the champion.

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