Burst of Anguish

You create an area of overwhelming mental stress at a point of your choice within range.  Each creature in a 15-foot cube centered on that point makes an Intelligence saving throw, taking 3d8 Psychic damage on a failed save or half as much damage on a successful one.

There are no effects on objects or the external environment.

Using a higher-level slot:  The damage increases by 1d8 for each spell slot level above 2.