I agree it seems that he concentrated as much chakra from his CS2 to his sharingan and damn near got MS.....(when the center pupil grew large enough to connect with the other 3) or the same amount of power as MS to break the MS doujutsu...
Re: Naruto 377 Predictions [Naruto]
Oh children,...... have all of you forgotten that the Kyuubi is the demon god of Fire, thats why his chakra is "lavalike" and is constantly SIZZLING Naruto's blood when they come in contact.
^^ that is true everything else is just theories posted on the web like this one....what if madara possesed obitos body when he was dying and formed the akutsuki, promising the members the power of the bijuus (meanwhile there is only 9 bijuu's and 10 members) hoping to take over itachi's body...