Originally Posted by Fat Dre89
If you want a challenge put a limit of two visits per pokecentre with the battle style set to set. Nuzlockes aren't really a challenge at all if you don't have a pokecentre limit.
It's a good nuzlocke because not only is it actually challenging, rather than just more time-consuming like most nuzlockes, but it forces you to have to be so much more strategic than usual. You now have to worry about spending your money well, PP conservation, switching strategies, timing your pokecentre visits etc.
It also prevents overlevelling or soloing the game with one poke (which nuzlockes without pokecentre limits don't prevent) not only because you can't train as much due to the pokecentre limit, but also trainers don't give as much exp. to your desired pokemon seeing as it'll be divided with whatever pokemon who had to switch out.
If I'm feeling like a bit more of a challenge than normal I'll do a variation on this rule, where every time I use a pokemon center I buy and throw out x amount of the highest level pokeballs from the nearby pokemart as a fee for using the pokemon center. By changing the amount you buy you can vary the difficulty to your liking, and tying it to pokeballs scales the costs into late game where you have significantly more money. Obviously I can't use pokemon centers / healing spots that don't have a nearby pokemart.