You are one with the darkness and can summon shadow and sorrow to your will. Choose an area you can see to swallow all light and joy. Any creature within a 20-foot-radius sphere must succeed an intelligence saving throw or take 6d8 psychic damage and become stunned until the start of your next turn. On a success creatures take half damage and do not become stunned.

At Higher Levels: The damage increases 1d8 per higher spell level cast above 4th.