I really can't be bothered doing any huge challenges like that right now tbh. I gotta find everything, and then get an emulator and get the proper games etc to use and I can do a challenge. :)
But as you know me, I came up with another challenge, again. I would call it the Ability Precipice/Threshold/Uhh... Brink challenge. Pretty much you choose however many abilities as you want in the game and you have to use Pokemon which fit the description of those abilities, so they don't have to necessarily have the abilities themselves. For instance, you could use the Sturdy, which would be that your Pokemon must be able to learn 2 One-hit KO moves via level and must know at least one of them. Or something like Illuminate would be that you have to use a Pokemon which can learn Flash.