Board Thread:Naruto Discussions/@comment-24898250-20140730025315/@comment-4271790-20140806082012

@Jashin Uchiha look at this discussion here. It'll address the former belief that Tsukuyomi and Amaterasu give rise to Susanoo. Not every Susanoo user has used Tsukuyomi and Amaterasu. Sasuke pointed out in a chapter while facing Gaara at the Five Kage Summit that a user needs the double Mangekyo to use Susanoo. Not necessarily the Tsukuyomi and Amaterasu. Kakashi, Madara and Shisui are proof of that.