Board Thread:Versus Debates/@comment-31191794-20170130210714/@comment-30830650-20170209132416

If Mangetsu mastered all of the 7 swords(and can summon them whenever he wants) then Mangetsu destroys Suigetsu. Suigetsu is weak against lightning, so if Mangetsu uses Kiba, then Suigetsu is done. (It's only logical that Mangetsu is also weak against lightning but seeing as he mastered all the swords including Kiba and Suigetsu has no known Lightning style techniques, then that wont be much of an issue I believe)