what's the benefit of using that? Its just make all of my enemy goes beserk. That's not the problem though, when i used the gaze of despair, my combo seems to be slower, and i can't maintain enemy in the air for long. So any reason i should put it on?
You alo earn magic *much* faster attacking an angry enemy. From about halfway through my Hard run I just left the Gaze on pretty much all the time; once you can handle the slightly faster / more aggressive enemies (which means more WT, anyway) all the extra magic and combo points are more than worth it.