You have learned how to better take on the skills and personality quirks of nearby creatures. As a bonus action, choose a creature that can see and that is within 30 feet and make a Charisma (Performance) check contested by a Wisdom (Insight) check from that creature. If you succeed, you mimic their mannerisms in such a way that it confuses them, giving advantage to all attack rolls made against them and disadvantage to all attack rolls they make against you until the end of your next turn.