Cry of the Cosmos

Beings from the cosmos created the sounds which no mortal should ever hear. 

Focus the power of the celestials within yours self, creating a piercing ringing within a 20 foot sphere around you. Any creatures within this radius must make a DC 18 Wisdom saving throw or begin to take 2d12 Psychic damage at the beginning of each of their turns until they are out of the radius.

On a successful save, the target takes no damage, but their consecutive saves while in the radius have disadvantage.