What if he somehow got Madaras other eye. so that he would have his Sharingan on the left and Rinnegan on the right? Then he would be able to take on madara.
Or what if Obito gave him his Sharingan. Madara said that you need both the eyes to use the sharingans full power. If kakashi got Obitos Sharingan i think he would be able to use Obitos space time tech and Kamui.
Or what if Obito gave him his Sharingan. Madara said that you need both the eyes to use the sharingans full power. If kakashi got Obitos Sharingan i think he would be able to use Obitos space time tech and Kamui.