Popis
You grasp that looking into the light blinds as surely as looking away from it. When you cast prismatic flash or a 1st level spell or higher spell that shreds 5 feet or more or bright light, as a bonus action you can force one creature within 30 feet of the light to make a Dexterity saving throw, or become blinded until the start of your next turn.
A creature is unaffected by this effect if it can't see, if it relies on senses other than sight, such as blindsight, or if it can perceive illusions as false, as with truesight.