Aside from bullshit hax omnipotence? Hazama Ryuu Kekkai Jutsu. It's convenient as fuck. Sure it can creep to bullshit hax level but you really have to be extremely devoted/talented to reach there
The power to shitpost and always get replies.
And to make everyone want to cum inside me.
I'll eventually find a reality where I'm happy and just live there. And where 2D is real
and it didn't burn anything unless he burned himself with it either so you have to choose between a useless flame that doesn't do anything or one that sets you on fire and can never be put out unless you cut your arm off