Board Thread:Boruto: Naruto the Movie/@comment-27162446-20151105015144/@comment-25645405-20151108124826

Thekillman wrote: GreatestSin wrote: yeah, the jutsu is really high-lvl but if she has total mastery over chakra shape and nature transformation i think it would be possible, of course the sharingans need to be stronger too Jutsu are copied because the Sharingan gives insight into how it works, it decodes the hand signs and it sees chakra so it is most definitely possible to copy any jutsu. The only reason it cannot copy Kekkei Genkai is because if you don't possess the ability yourself, you can't reproduce the effect since you're *physically* unable to do so. In Part I kakashi trained Sasuke to be strong enough to make full use of the Sharingan. he could decode Lee's movements but could not stop them because he wasn't fast enough.

Therefore, a Sharingan can copy any jutsu provided that the user would normally be able to use it themselves. Rasenshuriken can thus not be copied by any normal ninja. Naruto could pull it off twice (three times against Kakuzu). if we go by Kakashi's statements, that means each Rasenshuriken would be equivalent to about twice kakashi's entire reserve. Any non-kage level Shinobi would literally die from casting this jutsu.

Sasuke was able to discern the true nature of the Vanishing Rasengan, therefore it is possible to see it even when it vanishes. Momoshiki believed that Boruto's rasengan vanished because it failed, and did not expect it to actually hit.

He couldnt see the mini-rasengan after it vanished, just saw what happened to the tree seconds afterwards. :)