Board Thread:Versus Debates/@comment-26636534-20160221130323/@comment-27660682-20160224001144

He didnt use it for an infinite amount of reasons, one being due to Plot induced stupidity. Its the same reason why he didnt use it when he was still being controlled by kabuto and stab naruto from the beginning with totuska blade or the same reason he didnt use tsyukyomi immediately on bee when he made eye contact and just used sharingan genjustu instead, or why he didnt use it when nagato was still on his bird. If itachi used the yata mirror then there was nothing kabuto could have done, and also there was no point in using the yata mirror because he needed physical contact to do izanami. The whole fight he barely used susanoo to begin with and only in its premature stages, so there are number of reasons as to why it wasnt used. What im saying would normally be a weak argument, however the databook confirms that the yata mirror should be able to deal with a sound based attack. The other problem is if the yata mirror becomes sound proof it means itachi cant hear through it as well which means one of his 5 senses is impaired.