Phantasmal Killer(Player's Handbook v.3.5, p. 260)
Illusion (Phantasm) [Fear, Mind-Affecting]
Level: Sorcerer 4, Wizard 4, Warmage 4, Duskblade 4, Hexblade 4, Death Master 4, Sha'ir 4, Dread Necromancer 4, Dream 4, Illusion 4, Madness 6,
Components: V, S,
Casting Time: 1 standard action
Range: Medium (100 ft. + 10 ft./level)
Target: One living creature
Saving Throw: Will disbelief (if interacted with), then Fortitude partial; see text
Spell Resistance: Yes
You create a phantasmal image of the most fearsome creature imaginable to the subject simply by forming the fears of the subject's subconscious mind into something that its conscious mind can visualize: this most horrible beast. Only the spell's subject can see the phantasmal killer. You see only a vague shape. The target first gets a Will save to recognize the image as unreal. If that save fails, the phantasm touches the subject, and the subject must succeed on a Fortitude save or die from fear. Even if the Fortitude save is successful, the subject takes 3d6 points of damage.
If the subject of a phantasmal killer attack succeeds in disbelieving and is wearing a helm of telepathy, the beast can be turned upon you. You must then disbelieve it or become subject to its deadly fear attack.