There should be an option in training mode to reset the nanmu skill. In order to reset it you have to exit training mode and go back in, but maybe you could add a feature to where you just press esc>reset nanmu.
Well you got like infinite hp and sp you might as well have like infinite nanmus and panics as they can be useful to making new tactics based on the stages you play. Support
Nope because some guy will just have to find a way to make infinite HP/SP and nanmu go into public games smh
Have you saw anyone in a room with infinite hp/sp as that is pretty much your hp/sp now in training adding nanmu reset button or panic reset button will not change that if someone will try to do that its most likely they are hacking it and not a bug like training scrolls.