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Mt. Battle Area 10 is the tenth area of Mt. Battle, which contains zones 91 to 100. In Pokémon Colosseum, during Story Mode, opposing Trainers use Pokémon with levels from 58 to 60, with the last seven using solely Level 60. In Pokémon XD: Gale of Darkness, the levels range from 66 to 70. The concluding trainer of Area 10 is the Mt BtlMaster, who is the leader of not only Area 10, but also the whole Mt. Battle and the other Area Leaders.
Trainers with a Poké Ball by their names may be challenged for a rematch after defeating certain bosses. In a rematch they may have higher-level Pokémon, and any Shadow Pokémon previously caught will be replaced.