When a blindheim's eyes are open, it emits a 30- foot cone of light. It can see normally in this light and functions normally in areas of magical darkness. A creature looking at a blindheim when its eye beams are "on" must succeed on a DC 12 Constitution saving throw or be blinded for 1 hour. A blinded creature can repeat the saving throw at the end of each of its turns, ending the effect on a success.