Invisibility and Stealth should be overworked!
It is much to powerful because you can do everything you want and it has no consequences!
So, its getting ridiculous and the game becomes too easy!!! (to me its like a Cheat!!)
Well without those 2 features, you'll never able to afford all those powerful spell books where it later make the game seem so easy.
You see what I did there? : P
