Book of Shadows: Aura of Terror

You become surrounded by an aura of fear. Whenever you charge or attack, you inspire fear in all creatures within 30 feet that have fewer Hit Dice than your caster level. Each potentially affected opponent must succeed on a Will save or become frightened — The frightened creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success. A successful save leaves that opponent immune to your frightful presence for 24 hours. 

Any creature that enters the aura or starts their turn in the aura, must make a wisdom saving throw or become frightened.