Dunce Cap

When an enemy misses an attack against you or an ally in sight, you may use your reaction to point and say an insulting phrase. You conjure a paper cone hat that has the insult written in bold lettering across the front. The target must make a Wisdom saving throw or be stunned for 1 round. 

At higher levels, the spell causes the target to suffer psychic damage in addition to being stunned. On a failed save, the target is both stunned and takes damage. On a successful save, the target is not stunned and takes half damage.

Level 5: 1d6 Psychic
Level 11: 2d6 Psychic
Level 17: 3d6 Psychic