Taelira's Prismatic Flare

A bright streak of colors flashes from your pointing finger to a point you choose within range and then blossoms with an explosion of colors. Each creature in a 15-foot-radius sphere centered on that point must make a Constitution saving throw. A target becomes blinded for the duration on a failed save.

A creature affected by this spell makes another Constitution saving throw at the end of each of its turns. On a successful save, its no longer blinded.