Wood release is one of the most powerful jutsu’s and Kekkei Genkai in Naruto, yet only a few small people can use it, with only one being able to Naturally learn it.
It’s unusual that this is the case and especially with so many other powerful shinobi out there, so I have devised a list of characters that should have been able to awaken this power however; couldn’t for whatever reason.
Tobirama was the brother of Hashirama and the second Hokage. Tobirmama was highly skilled and mastered all 5 chakra natures, which enabled him to invent many powerful jutsu’s. He was also a prominent member of the Senju clan and so it is strange that he couldn’t use wood release.
Orochimaru learnt many powerful jutsu’s that were considered forbidden, his inhumane experiments gave the powers of wood release to Danzo (couldn’t control it) and Yamato, by fusing Hshirama’s cells into them. In turn it surprises me that the Legendary Sannin couldn’t do the same for himself, as he wanted to learn all jutsu’s.
Hatake Kakashi was known worldwide as the copy ninja as well as Kakashi of the Sharingan. His visual powers enabled him to copy and master all chakra natures, over 1000 jutsu’s and various tai-jutsu techniques. Along with his genius, it surprises me that he couldn’t lean how to use wood release, as he could use all the basics it required.
Hiruzen was the third Hokage and only the second man in history to be called a god of shinobi. Hiruzen mastered all 5 chakra natures, meaning he could use water and earth release, which are the basic essentials of wood release. It’s strange that Hashirama and Tobirama didn’t teach it to him.
The grand daughter of Hashirama, a member of the Legendary Sannin and the fifth Hokage. Tsuanade has the same blood as Hashirama and is the strongest living member of the Senju clan, she really should have had the capability of wood release. Her skills as a medic-ninja are exceptional, as is her strength and intelligence. Even Madara was surprised that she wouldn’t use this Kekkei Genkai, when he fought her.
Obviously Naruto still has time to learn this, if he hasn’t already. He received the prosthetic arm made of Hashirama’s cells, meaning he now has Senju cells. Also the Uzumaki clan already was a distant relative to the Senju clan, meaning it should be possible for him to learn it. When Naruto uses Six Path mode he has access to all chakra natures. If he was to use Six Path Sage Mode, Naruto should then be able to mix water and earth release to manifest wood release.