Once per turn when you reduce an enemy to 0 Hit Points, choose one of the following benefits.
Assault
As a Bonus Action, you can move up to 15 feet and make a melee attack.
Break Spells
All of the creature's spells and effects immediately end, including all spells with permanent effects. Additionally, Contingency, Clone, and other spells that occur in response to the target's death don't trigger.
Shatter Morale
Each ally of the creature within 120 feet of it that has a Challenge Rating less than the target's (or the target's level if it doesn't have a Challenge Rating) has the Frightened condition for 1 minute. At the end of each of its turns, the Frightened target makes a Wisdom saving throw against your spell save DC, ending the condition on itself on a success.