Legends of Kyrael

Kyrael is a game world that does not exist within the world of the Pokemon game series, but instead has its own history and planetary structure. It is a realm in which Pokemon have been used - for better and definitely for worse - as weapons of war as well as companions, and in which their use and management is carefully watched and restricted.

Because this develops beyond the standard game conception of a 10-year-old champion and works on a world where that can happen more than once, level limits and similar fare have been lifted. You've been warned.

Trainers can be combatant; although obviously this is against the rules in an 'official League battle', your enemies may not be so merciful.

http://pturpg.wikidot.com/character-creation