Board Thread:Rebirth: Applications/@comment-8914761-20141004174402/@comment-8914761-20141005235744

1. That can be true or false, Ash. Sasuke doesn't use Tsukuyomi, and Obito only uses Kamui. Now, I can say that Sigma either got it through Amaterasu and Blaze. Or how Obito explains it: "It is formed through the materialisation of the user's chakra, its abilities, appearance and colour vary among individuals." So, either or works for me.

2. Instead, he flushes the overflowing Spiritual energy into the techniques that he use. Ei, Fire Style Techniques, etc.