Waves of Fatigue

(Player's Handbook v.3.5, page 301, DnD 3.5)

Necromancy

Level: ; Sorcerer/Wizard 5; Duskblade 5; Blighter 5; Sha'ir 5; Death Master 5; Dread Necromancer 5; , Hades 6, ; , Sloth 6
Components: V, S
Casting Time: 1 standard action
Range: 30 ft.
Area: Cone-shaped burst
Duration: Instantaneous
Saving Throw: No
Spell Resistance: Yes

Waves of negative energy render all living creatures in the spell's area fatigued.
This spell has no effect on a creature that is already fatigued.