lightning release chakra mode is a nintaijutsu because it combines ninjutsu and taijutsu into one technique that allows for both offense and defense. Unrivalled strength does the exact same thing just on a greater scale as Boil Release unrivalled strength gave naruto such a boost of speed and power that he was able to speed blitz kaguya
Classifacation of this jutsu?
Then it should be done on the article talkpage. Consensus Track is for wiki-wide changes, not changes to single pages. (assuming the OP is actually trying to make a change to the wiki, which I doubt he is trying to achieve).