Crushing Disinterest

One creature of your choice that you can see within range hears your dismissive grunt as you turn away, dismissing them. The target makes a Wisdom saving throw. On a failed save, it takes 2d8 Psychic damage and cannot target you until the end of your next turn. On a successful save, the target takes half as much damage only.

Using a Higher-Level Spell Slot. The damage increases by 1d8 for each spell slot level above 1.