Board Thread:Theories and Speculation/@comment-27002073-20160406173133/@comment-27002073-20160406184132

Anti-Social Experiment wrote: Kakashi Has Copied The Fireball Jutsu (Fire Release), Water Dragon (Water Release), He has Mud Wall (Earth Release), Chidori (Lightning Release) and has Copied Naruto's Rasengan (Wind Release). Rasengan is not wind release, Minato never combined an element with it....

http://naruto.wikia.com/wiki/Rasengan