Board Thread:Naruto Discussions/@comment-25645405-20141128183407/@comment-4366149-20141202020343

Back on the topic of Magnetism, is it databook confirmed that Wind and Earth make up that nature?

Not precisely. Logical assumptions were made in order to reach the indisputable conclusion. The two logical assumptions are that only the five basic natures can be combined to produce advanced natures, and that Magnet Release is an advanced nature that is made up of two natures. This premise, when applied to Rasa's nature chart in the 4th databook, automatically yields an indisputable conclusion that Magnet Release is made up of Wind and Earth. Rasa has Earth, Water and Wind natures. Earth + Water gives Wood, Wind + Water gives Ice, therefore the only combo left for Magnet is Wind + Earth.

The only way to tear down the conclusion is by poking holes in the logical assumptions, which would be very difficult because they are strongly implied in the manga: Kakashi explicitly stated that the combination of any two of the five basic natures belongs to the domain of kekkei genkai. He didn't say anything about Yin and Yang, but that doesn't mean he explicitly said that you can't combine any of the 5 natures with Yin or Yang, but his silence is then assumed to mean that you can't. So that's where the assumption that only the five basic natures can be combined to produce advanced natures comes from. As for the other assumption, every Release that is not part of the five basic ones (except maybe Blaze) are all made up of two or more natures, therefore it is concluded that Magnet Release must follow the trend.

I hope I helped.