Enforcer

You've learned just how persuasive your fists can be, gaining the following benefits:

Fear of Reprisal. If you've hit a creature with a melee attack within the last minute, you gain advantage on Intimidation checks made against that creature.

Burst of Fear. When you defeat a creature with a melee weapon attack you may spend your reaction to strike fear in your foes. Choose a number of creatures up to your Proficiency Bonus within 30 feet of you that can hear or see you, they must succeed on a Wisdom saving throw or become frightened of you until the end of your next turn. The DC of the save equals 8 + your proficiency bonus + your Strength modifier.

Inspired by bubble's Enforcer.