The material below is Open Game Content from a 3PP Source
Waves of Fatigue
School necromancy; Level sorcerer/wizard 5, witch-4wfg 5
Casting Time 1 standard action
Components V, S
Range 30 ft.
Area cone-shaped burst
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.