To locate others IC.
Cannot be cast in combat. When cast it creates a scrying device (actually a creature to serve as a listener). Speaking the complete name of the character aloud triggers the next step, checking for that PC. Then the caster would be cutscene invisible(Not starting a cutscene, its a special kind of absolute invisibility for those that are not familiar with building) and not controllable. In essence all they can do is see what is going on at the location of the target character for 1 round/2 levels. Maximum of 5 rounds. (If my math is correct a level 10+ wizard would see a scene for 30 seconds)
Would also make it possible to have areas of faerzress, even though it might not have much impact.