Dungeons & Dragons 5e Element 133 Class Feature: Piercing Sound

You can use an action to create a devastating wave of high pitched sound interrupting all thought processes of hostile creatures. All creatures within a 30ft radius centered on yourself make a Constitution saving throw (DC 12 + Tier). On a failure all creatures take 4d10 thunder damage and are stunned. On a success creatures take half damage and are not stunned. This ability creates a loud sound that can be heard from 200ft away. This ability can be used a number of times equal to your Tier + 1 per day.