Blackest Terror (3.5e Sacrifice)
From D&D Wiki
You project a baleful aura of terror around your body out to 60 ft. Whenever you attack, charge, or otherwise seek to threaten, enemies in range must make a Will save vs fear, or be frightened for 1 round/level. On a successful save they are merely shaken for 1 round. Regardless of success or failure, each target may only be affected once per encounter (or once per minute when out of combat). In addition, you gain a +6 to intimidation checks when employing this. This effect lasts for up to 24 hours.
Maximum Health Penalty: -6.