Your very presence unsettling to foes. Activating this ability is a free action that is usually part of an attack or charge. Opponents within range who witness the action may become frightened or shaken. The range is 40 feet. This ability affects only opponents with fewer Hit Dice or levels than the creature has. An affected opponent can resist the effects with a successful Death save. On a failed save, the opponent is shaken, or panicked if 4 HD or fewer. An opponent that succeeds on the saving throw is immune to your frightful presence for 24 hours. Frightful presence is a mind-affecting fear effect.