I am playing as the Dark Urge. I have the cloak that provides invisibility after a kill. While invisible in this way, I hide, I move to the darkest area on the map, and end my turn. Every enemy knows EXACTLY where I am. They run up and either see me immediately (WHICH ENDS A MAGICAL INVISIBILITY), or they use sense presence while spinning in a circle to do the exact same thing. Every enemy in the game can detect anyone with magical invisibility, and a 35 stealth check simply by using a free action.
Absolute CRAP.