I've been looking about making a low-effort double battle hack of one of the DS games, but it seems editing the battle type of regular route trainers makes them crash the game when they see you. I've tried BW2 and Platinum so far.
Initiating the battle by talking to them is safe (though with no pre-battle speech), and this makes me think this has to do with the fact that normal double battle trainers have two NPCs who both move towards the player at once, and because the game can't find the other NPC it's expecting it just breaks. Any ideas?
>>35084493Could be a mine which the city was built around? Or a secret passageway into an otherwise inaccessible part of a nearby dungeon?
>>35086044Smogon's BSR spreadsheets (
https://www.smogon.com/forums/threads/34907260/) might be useful for you. Compare your stat spreads to those of normal Pokémon.
