Brutal execution

You have learned how to savagely slay an enemy, invoking a deep seated fear in other enemies who see this brutality. Upon landing a final blow on an enemy, you may choose to activate this feature, causing all enemies in a 60 ft radius that can see you to make a wisdom saving throw (dc 17) or be frightened by you for 1 minute. You can use this feat 1 time plus your strength modifier per long rest. An enemy affected by this may make another wisdom save at the beginning of their turn to remove this effect