As a Bonus Action, you let out an unearthly howl. Each creature of your choice within 15 feet of you must succeed on a Wisdom saving throw (DC 8 plus your Constitution modifier and Proficiency Bonus) or have Disadvantage on attack rolls and saving throws until the start of your next turn.
You can use this trait a number of times equal to your Proficiency Bonus, and you regain all expended uses when you finish a Long Rest.