Board Thread:Naruto Discussions/@comment-24855911-20140913181717/@comment-3279282-20140913182116

Objection! Those requirements are only true for Itachi, since he was the only one with a Susanoo at the time that statement was made. Seeing as no other Susanoo user ever used Tsukuyomi and only Sasuke can use Amaterasu, it's impossible for those two techniques to be a requirement for Susanoo in general. Furthermore, Kakashi, who also used Susanoo, was able to use it the second he gained two Mangekyo Sharingan. He was not able to learn Amaterasu and/or Tsukuyomi in that short time frame.