You know the route between the giant bell tower and Mistralion city? There is a trainer their named Pokemon Marcus, I passed by him and, obviously, he went to battle me. The strange thing is, every time I leave the area (Go into house, go to different route/city/town, go into battle) then pass by him he challenges me AGAIN! Is this a glitch? Or was this something they did on purpose as a source of EXP?