We would still like to see more detail on the power, as much as you can give on it. Consider things such as the range of it, what objects would appear like to Garviel, how long he's able to use it, both the strengths and weaknesses of the power. For instance, if he's able to see in even magical darkness, how would that affect the ability of other magi to see his red light projection? Spare us no detail!
no subject