Board Thread:Theories and Speculation/@comment-26636534-20170616123523/@comment-734582-20170616133547

Ninja Of War wrote: 1) Shadow clone training to the max. Only Naruto demonstrated this ability so far, however if used to the full extent it has the means to make the user, at bare minimum, one of the most powerful shinobi to have ever lived. This doesn't really work unless you are like naruto (IE a jinchuriki). Most ninja are limited by their chakra. IE Kakashi could only use a few Chidori per day. So if he's training Chidori, he can hit his limit in maybe one or two hours of training and then he can take the day off as he restores chakra.

So unless you have monstrous chakra to use jutsu throughout the day, you're not going to do much with Clones. Naruto could do it because he used Rasengan pretty much 24/7 in his training, and even then could sleep all the negative effects off.

On the other hand the majority of ninja we've seen would be unable to sustain such jutsu use. And those that could use this training under their own power (Hashirama and Tobirama come to mind), were already among the strongest making the training largely irrelevant. Ninja Of War wrote: 3) Mirrored Shadow Clones. Allows the user to make a shadow clone of their opponent, that has the consciousness of the user and memories of the opponent. The downside is that, both the user and the opponent's chakra will be halved. This isn't how it works, and it wouldn't be of any use. Shadowclones are simply pieces of chakra split from the owner, similar to Naruto creating cloaks for the Alliance. If you could force the opponent's chakra to split, well there are better things to do with such power. On the other hand a shadowclone/transformation combo already creates an image of the opponent, like Naruto did.