Dark Star's Gaze

You summon a swirling mirage of the Dark Star within range, gazing down on targets inside a 30-foot cube. The illusion lasts for the duration, shedding bright light for 30 feet and an additional dim light for 30 feet. Each creature caught in the gaze of the Dark Star must make a Wisdom saving throw. On a failed save, the creature is charmed for the duration. While charmed by this spell, the creature is incapacitated and has a speed of 0. If a creature fails it's saving throw by 8 or more, the creature is blinded instead.

The spell ends for a charmed creature if it takes any damage or if someone else uses an action to shake the creature out of its stupor. At the end of each of a blinded creatures turns, the target can make a Constitution saving throw. On a success, the target is no longer blinded. When all of the creatures originally affected by the spell are no longer affected by conditions, the spell ends.