Board Thread:Naruto Discussions/@comment-44437908-20200710093820/@comment-44437908-20200710113129

That's why I said unconsciously or his cells did that. I came up with this theory because Hashirama created whole forest around Konoha. And that forest is alive right now. So if he used only wood release then the forest could have vanished as Hashirama is dead and the jutsu dies when jutsu caster dies. May be only he used Yang release and his cells automatically can use Yang release just like Hashirama's sage mode. His cells has all the abilities of Hashirama so maybe those cells use yang release. Kakashi and Yamato learned everything from scrolls that Hashirama left they didn't debunked wood release on their own.