Board Thread:Theories and Speculation/@comment-26958911-20160827210047/@comment-25449165-20160912042546

Perhaps I mispoke. I knew that Chidori wasn't Rasengan + Lightning Release. I only had worded that way because I believed it was to give a better understanding on how Kakashi had tried to create it. When he was training Naruto to help him master the Rasenshuriken, Kakashi did create a Rasengan in front of him. From there, he tried adding Lightning Release to it, but it didn't work and therefore it became the Chidori, or rather the Lightning Cutter/Blade in his case.

When I meant prodigy, I meant it as "freedom of chakra control." Indra didn't have it, but Asura did. So I was referring to that.

Yes, Asura did not create the Rasengan, but he developed a technique that was quite similar to it. If you look at the picture on his profile, you'll see a whole bunch of chakra spheres that highly resemble the aforementioned technique.