thanks for all the replies : )
I already have the skills patch and can assign skills for units/classes and so on
I also managed to create a Staff that can attack enemies, and that works
but for my Staff that should have the same function as a Physic-Staff, I could not get it done yet, will try again though, might have missed something obvious
regarding the weapon-lock, I also thought about it, not sure on how to do it yet, but I wanna first fix the Staff, I m taking small steps