Enervation

School: necromancy
Circle: arcane 4th, occult 4th
Spell Components: V, S
Action Time: 1 action
Range: medium
Shape: ray
Targeting: hostiles only 
Base Duration: permanent
Saving Throw: fortitude
Spell Resistance: yes
Ritual Components: n/a

Sends a flash of sapping energy at the target, bestowing 1d4 negative levels which persist until cured. Enervation does not stack with itself.