Board Thread:Fourth Databook/@comment-24577388-20141105025614/@comment-4912646-20141105061442

Omega64 wrote: Well it's cute that Kishi says it and all, but in the end of the day he's just assigning natures to people and then never showing them use it. It's kind of cheap. Why not just say they don't have a nature. We are seeing tons of shinobi with four or five natures, it completely wrecks the principle that the five natures is practically unheard of, when the first three Hokage all had them without Rinnegan. This also includes Obito and Kakashi. Kakashi doesn't really have any excuse for how shocked he was by Kakuzu's abilities if he was also capable of all five the entire time.

Kakashi was surprised at how well Kakuzu used them. He said something along the lines of needing to perfectly master a nature to use techniques of that level. It was already strange to see him so surprised, given he himself also used B-rank techniques of three different natures, and that's before he was revealed to have fire and wind just now.

It begs the question, what actually qualifies as "having" a nature? Naruto had a wind affinity before his wind training, but at one point did he actually count as a wind user? When he split the leaf? When he split the waterfall?