I just want a world where someone like Tomiko can fight with someone like Kiro with both going all out and both having an actual chance to win. That's all I ever care about with any RP I am in.
See Tsuchikage using Add-Rock Weight jutsu to buff the Raikage's punch and blast a hole through Madara's Susano. A technique I shamelessly stole with Hinagiku and touched it up to fit to the gentle-fist style.
The only things that would absolutely need to be banned would be the genjutsu abilities Tsukuyomi, Kotoamatsukami.
I think the other techniques are...fairly balanced? Amaterasu can be sealed or globbed off by blocking with something, but Kagatsuchi makes it much more versatile.