You conjure the celestial lights and boreal winds of the arctic north to a point within range, creating a 30-foot radius cylinder 90 feet tall. At least half of the cylinder cannot be under a roof or any other barrier against the sky.

When the cylinder appears, each creature within it must make a Wisdom saving throw to avoid being distracted by the dazzling lights and patterns that dance atop the cylinder. On a failed save, a creature is incapacitated as long as it can see the lights (its speed isn’t reduced). Affected creatures can repeat this save at the end of each of their turns.

Movement inside the cylinder is halved. Additionally, if a creature starts its turn in the cylinder or enters it for the first time on a turn, it must succeed on a Strength saving throw. On a failed save, it takes 10d8 cold damage and 10d8 bludgeoning damage, is pushed 15 feet in a clockwise direction around the cone, and is knocked prone. On a successful save, it takes half as much damage, isn’t pushed, and isn’t knocked prone.

The cylinder is filled with bright light and sheds dim light out to a radius of 30 feet.