Energy drain

Energy drain was a necromancy spell that could temporarily or permanently drain life energy levels from a creature.

Effect
This spell functions in the same manner as enervation, except the creature struck loses a larger portion of their power, as well as that power being lost for a longer period of time.

Twenty-four hours after being effected by the spell, subjects have been known to start recovering from its effects. However, the ability to overcome the spell is based on the prowess of its caster and the fortitude of the victim. Although victims may recover from the effects of the spell, there have been cases in which the effects of the spell become permanent due to the lack of innate fortitude in a subject.

It has been noted that if the spell is cast upon a creature of undead origin it gains temporary power, becoming more formidable.