Board Thread:Theories and Speculation/@comment-27717552-20160513151229/@comment-734582-20160514162501

UltimaDude wrote: @Thekillman Kakashi's chakra reserves has improved over the course of the series. If shadow clones are too much, then he could easily use lightning clones, which take far less chakra. You're probably right about the fact that the Rasengan strains Kakashi True, but remember it took Naruto years-equivalent of training to get this done. It's not like Kakashi can so easily copy this form of training, it would still take him years of nigh-constant training (as naruto trained about 50% of the time for about a week -years of nonstop training-). Also his comments about reserves (ranging from twice to four times Naruto's chakra) suggest that every Rasenshuriken has about half Kakashi's reserves worth of chakra. UltimaDude wrote: If Minato had time to develop the Rasengan, then he should of had time to add a chakra nature to it. But I guess being Hokage takes priority. Rasenshuriken is the result of adding wind-natured chakra to the Rasengan and then taking it a step further. We don't know what chakra-nature Minato wanted to add to the Rasengan But there's the obvious question of when exactly he developed Rasengan. he didn't seem to have it as a Jonin, and he became Hokage not that long after. If those 3 years he spent were, say, a year before his death, that would leave him with 1 year of Rasenshuriken training, which we know is too short.

I know that Rasenshuriken training is technically only Wind Release, but it's easier to talk about it that way.

So yea, my point is that had Minato lived, he almost certainly would've succeeded. He simply didn't have the time to finish it. I think Kishimoto thought near-instant Rasengan delivery was OP enough. Minato in Sage Mode, using Hiraishin to deliver point-blank Rasenshuriken would probably make him the strongest Hokage and it's pretty much the strongest jutsu combination i can think of without kekkei Genkai. Well maybe with the Raikage's jutsu it would be more broken, but that aside.