I originally did this challenge in Sword and Shield, and it’s called the B Button Challenge. The challenge is that you may not evolve a Pokemon until a certain point in the game. The levels that I can evolve my Pokemon at are based on my own fakemon region for my fan game. For example, Level 16 is about the second gym in my region, so I would not be able to evolve my Delta Bulbasaur until the second gym battle. Level 32 is after the fifth gym in my region, so I wouldn’t be able to get a Delta Venasaur until after the fifth gym battle in Insurgence (which is about Level 60). I think this challenge would interesting since I don’t really like it that you can have a fully evolved starter and a completely fully evolved team at the second gym in Insurgence, and this challenge would also make the game more difficult. Though, I don’t know if it would be possible, but it would be cool to try. Should I do it?
Sure, why not?
Either way, don’t evo D. Scyther, it’s better unevolved.