Board Thread:Naruto Discussions/@comment-44437908-20200710093820

Wood style is a mystery in Naruto world as only Hashirama had it naturally. Hashirama was reincarnate of Ashura so he had naturally strong chakra and life force. He was also a senju who are descendants of Ashura. So with this things I came up with a theory that Hashirama used water, earth and Yang release to create wood release and that's why only he was natural use. Wood release is also only kekkei genkai that creates living things other kekkei genkai create non living things except Jugo's and Kimimaro's kekkei genkai. As Hashirama is Ashura's reincarnate Hashirama's children or grandchildren would never have the ability to do it naturally as strong life force is Ashura's ability. Other members of the clan never had wood release but wood release is stated to be kekkei genkai of senju clan so previous reincarnations of Ashura must have used it. I used this theory because there is another kekkei genkai that also uses earth and water which is mud release. https://naruto.fandom.com/wiki/Mud_Release It has been stated in Naruto hiden novel (cannon). Wood release is still a kekkei genkai and not a kekkei tota. Its just a combination of earth and water then yang mixed into it. Earth and water creates mud then hashirama cells are transformed into seeds using yang release and then yang release is used to grow them.

Hashirama cells must have absorbed the Yang release power from Hashirama just like sage power. When Madara absorbed sage jutsu from Hashirama the markings on Hashirama's cells have same appearances.  