Board Thread:Theories and Speculation/@comment-31477926-20170702121758/@comment-7292165-20170817162504

Point. Blank. Period. The Yata Mirror has only been said to change its characteristics to match a nature transformation, but it can't increase it size, otherwise it would have against Orochimaru's snakes who breached past it. What's worst though, is that it has no real feats.

And just to educate those who may not know or who are in denial, the manga is the primary source, it came first. The databooks are only supplementary. The Databooks are only meant to support the manga (though most of the time and just contradicts it), not the other way around. Databooks do not take priority over the manga.