I had the craziest dream last nigt, I had to kill sasuke to get the MS and I was training with itachi and he told me that to beat him I had to shave his head cause it was the source of sasuke's emo power XD
The first few battles should be our preferred characters, but then after that we should do conditions.* Some thing like you can only use characters that were either kage or put up to be kages.* Then the only support characters you can use have to have a story line relationship with the character you're using.* Example if you picked Gaara as a character you would need to pick someone that has a story line relationship with him.* People that would match that criteria would be: Lee, Naruto, Temari, Kankuro, and I think that's about it...
And stops people from just choosing the best supports (unless, by some freak accident, the best supports are all tied to one character, like........ oh I dunno, Naruto. Oh wait.....).