@vicious17: I am not sure when this actually opens up, but there is a concept called Master Trainers, which populates the world with ~150 trainers each with one of the species of pokemon. Aside from a few who will ask for a favor or give you some sort of sidequest, you will battle them to a mirror match to gain a "title". I would like to say this is endgame stuff since their pokemon are in upward echelon in terms of level and have stronger movesets.
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