Bob_Kizmet_5542
In addition to the 5 common senses, the MC could also address concepts like the sense of balance, temperature, rather than playing on things like emotions with a focus on hormones. increase self-confidence or induce risk-taking and therefore mistakes reduce the feeling of pain to make the opponent believe that there is a less deep wound, play on emotions. rather than modifying the senses, generating hypersensitivity to hinder the opponent could also be interesting. Playing on the sensation of speed and also possible. Itachi hurt himself at the first use of the sharingan in a fight with a cause of the difference in speed. Generating this type of genjutsu could be interesting. Big genjutsu aren't always the most dangerous. If the MC is a Senju then Naruto type training will soon become possible due to his large chakra reserves.
Maybe instead of Wood Release the mc can have Plant Release and with that he can all control plants, he can subdue tailed beasts by sucking away there chakra like wood release, summon man eating plants like Poison Ivy and also because a lot of plants are poisonous because of this he gains a second kekkai genkai Poison Release and with that and Plant release he will be truly powerful. Or maybe He can have light release with the same powers as Kizaru from One Piece