Board Thread:Versus Debates/@comment-9782468-20160128040953/@comment-734582-20160218195414

ShaneKite00 wrote: Yet you have zero proof against me whatsoever and you have no proof that they can dodge it. Remember when Kakashi used it against Deidera?

Kamui is an ability that needs to be aimed with the eye. There's a limit to how he can keep Kamui on target.

Secondly, Kamui is a Ninjutsu and therefore should be able to be absorbed by Preta Path. Thirdly, if Madara or Sasuke physically touches Kakashi before he can use Intangibility (and we've already seen that it is possible) they use Human Path, preventing Kakashi from becoming intangible, then they drain his chakra (or pull out his soul, or straight up kill him, whichever is faster).

EDIT: I believe Naruto would be the first casualty. His Shadowclones, extreme reserves and extreme power would make him extremely annoying to deal with for everyone, as he literally could fight all others at the same time without sacrificing so much power that he can't deal with them. Being the most straightforward character, Naruto would not really have the kind of dirty tactics you'd need to win a FFA, leading him to be vulnerable to exploits.