Dreadful Omen

Woe to those who stand against you. Ominous voices clutter the minds of each creature of your choice within a 30ft cube centered on a point within range that you can see must make a Wisdom saving throw, taking 4d8 psychic damage and becoming frightened until the end of their next turn on a failed save, or half as much psychic damage only on a successful save.

At Higher Levels. When you cast this spell using a spell slot of 5th level or higher, the damage increases by 1d8 for each slot level above 4th.