Board Thread:Theories and Speculation/@comment-27002073-20160406173133/@comment-9782468-20160407043436

Omnibender wrote: Being able to use a nature doesn't mean you're a master. It just means you're competent enough to use it. An affinity just means you have an easier time learning a nature. And I don't know if this is what you're getting into when talking about ranks, but ranks are not how powerful techniques are, just how difficult they are to perform, or to learn. In the article of chakra natures, it lists characters that mastered all 5 chakra natures on their own and Kakashi was one of them. I assumed that was translated from a adatabook but if it's incorrect then someone should edit that.

Also I know it's the difficulty, but it makes sense with my description right? Kakashi can use difficult techniques of any nature, but for the highest difficulty it has to be his affinity. Didn't Kakashi say something similar in his fight against Kakuzu?