How is Asura using Rasengan? In Naruto anime episode 468, Asura is shown to be using a Rasengan based jutsu against Indra. If I'm not wrong, the Fourth Hokage Minato invented Rasengan several years later. Am I missing something here?
It may not have been rasengan, but just gathering chakra and rotating it for more power. My defense of this would be Indra's using a similar jutsu to chidori in this filler arc. Both jutsus are similar to the modern day jutsus we know, but not quite the same