Board Thread:Official Rules and Announcements/@comment-4869113-20150509211340/@comment-5892594-20150510023256

In a fanon world there are no real reasons why someone can't get 5 Elemental Natures. Especially since all characters can technically use all 5 elements, with the difference between elemental mastery and acquaintance being the use of handsigns, as seen from how Kakashi possesses all 5 elements.

For the Kekkei Tota and Kekkei Genkai, I believe that is the user's choice. If he wants to be OP, so be it. I don't really think that is a problem because unexplainable things happen often in Fanon.