Board Thread:Naruto Discussions/@comment-3279282-20140421103228/@comment-2140588-20140421112321

Kishi's explanation will be "I, Madara Uchiha, can use any and all styles of Ninjutsu because I have the God Tree's chakra, who is the embodiment of chakra itself, so all Kekkei Genkai, all unique ninjutsu, I can use them all!!" at best..

As for the Senjutsu, I had a feeling that the Jinchuriki Transformation that Madara and Obito use is actually Hagoromo's Sage Mode, but I didn't point that out so I wouldn't look that dumb, but now its a possibility..