Tyrant Fog Zombie Mist

Difficulty Class, where applicable: 10 + 1 for every 3 HD.
Duration, where applicable: 1 round for every 3 HD.
Damage, where applicable: 1d6 + 1d6 for every 3 HD.

Some creatures are able to project a 10-foot radius field of protective energy that has an effect on any enemies that come within range. The following types of Auras are available in the game:

Aura of Cold, Aura of Fire, Aura of Lightning: Damaging auras.
Aura of Blinding: Enemies entering the aura are blinded.
Aura of Fear: Enemies entering the aura are stricken with fear.
Aura of Menace: Enemies entering the aura are stricken with the effects of a Doom spell.
Aura of Protection: The caster is protected as if he had a Circle of Protection - Evil and Globe of Invulnerability in place.
Aura of Stunning: Enemies entering the aura are stunned.
Aura of Unearthly Visage: The caster appears so beautiful or so ugly that creature entering the aura must save or die.
Aura of the Unnatural: All animals are instantly stricken with fear.
Miscellaneous: Tyrantfog (5-foot radius of green mist that saps the Constitution of all creatures within its grasp. Fortitude save at DC 13 to resist).