Board Thread:Theories and Speculation/@comment-26636534-20150710195521/@comment-26275777-20150711173744

Thekillman wrote: He could literally have Susanoo protect his back. He can put anyone in Tsukuyoi in a glance and use the Mirror for any jutsu fired from elsewhere. He wouldn't be the most powerful ninja, but he'd be in the top 5 strongest i think.

His Susanoo's back is still wide open. It doesn't have a Yata Mirror on it. Ergo, it can be pierced by anything that would pierce any other Susanoo we've seen, and he can still be pulled out of it.

He can't put anyone in Tsukuyomi with a glance if he's inside a Susanoo, especially a Complete Body - Susanoo. It's this thing called eye contact that's rather hard to achieve from a hundred or more feet away.

And the Yata Mirror is not omnidirectional. It's a shield. A powerful one, true, but that's it. It can't block two things at once. Its advantage is essentially nullified by fighting him two or more on one (which an individual can accomplish with clones). This is why to me the Mirror is inferior to Gaara's defense - his sand can protect him from more than one angle, and it's just more versatile.

Same thing for the Sword of Totsuka. Its sealing is not instantaneous, and it's effectively out of commission for the few seconds that it's stuck in something.

Simple diversionary tactics have the Sword/Mirror combination beat. Someone occupies the Mirror, someone sacrifices and takes the Sword, and the rest of the team attacks/pulls him out of Susanoo while he's vulnerable because both hands are busy.