This spell functions like
enervation, except that the creature struck gains 2d4 negative levels, and the negative levels last longer.
There is no
saving throw to avoid gaining the negative levels, but 24 hours after gaining them, the subject must make a Fortitude
saving throw (DC =
energy drain spell's save DC) for each negative
level. If the save succeeds, that negative
level is removed. If it fails, the negative
level also goes away, but one of the subject's character levels is permanently drained.