Board Thread:Naruto Discussions/@comment-24824859-20150202220511/@comment-4516570-20150203055058

I always took it as Hashirama being a special snowflake first, and then having it massively enhanced by being Asura's transmigrant second. As far as kekkei genkai go, we've seen a lot of different people using it, and just look at the other guys: Yamato: Pitiful pieces of lumber mostly. Obito: Almost dead-looking withered branches. Zetsu: Not his main suit, and Guruguru only really showed us some good stuff while controlling Yamato, effectively doubling up. And then there's Madara, who integrated Asura's transmigrant's chakra into himself and performed just as well as the transmigrant himself. Can't be coincidence. And I do realise all the examples originate with Hashirama, but Madara's case is the only one where a real piece of Hashirama was the source, and Mokuton was merely a side effect to a different goal, namely the Rinnegan.