Board Thread:Naruto Discussions/@comment-26403664-20160228225013

There is a misconception that with the Totsuka blade and the Yata Mirror Itachi is invincible and no one can defeat him. But that is completely false.

By that logic the invincible Kaguya would have never been sealed, the Ten Tails would have never been defeat by Hagaromo and Hamura nor restrained by Hashirama, Pain would have not lost against Naruto, and Madara's perfect susanoo sword would be able to destroy everything when it couldn't destory a wood golem.

Yes the Totsuka blade is an extremely powerful weapon that seals anything it pierces. However since it's a sword it has a certain range. It's not something that can extend to any length chosen by the user. Further more the blade can be dodged, like any other sword. Nor is there any evidence that it can pierce a susanoo or other things just as hard or harder with one stab.

The third databook claims that the Yata Mirror is invincible and that nothing can get past it. Well even so you can attack Itachi's feet so therefore he can be pulled from the susanoo. However just regarding the databooks, the databooks are used to supplement the manga only. The manga, canon movies, and anime trump the databooks as databooks just explain certain things that weren't made clear in the original material. They are not some infallable books. If that were true all tailed beasts would be mindless monsters, anyone with a higher stat rating than Itachi would win, Kurama would be the only one to know the origin of the sharingan, etc. While the Yata Mirror was never retconned, it never has been used after the Itachi vs Sasuke fight. You see it when Itachi fights Pain but it never was used. Now going by the logic before Madara's perfect susanoo sword would pierce the shield considering it can destroy all things in the universe (I think that if the mirror did get hit by Madara's sword enough times it would shatter). We have never seen the Yata Mirror being used to defend anything other than a couple of paper bombs. Itachi's susanoo was also utterly destroyed by Kirin so where was the Yata Mirror then?

My interpretation is that previous databook information is outdated if retconned in future databooks. Since these things get updated unless the manga or anime support the claims of the databook then I am under the belief that the claim should be disregarded. Going back to the Yata mirror only the databook really says how invincible the mirror is supposed to be, Black Zetsu only says that it can withstand the five elements.

Thoughts anyone?  