By means of a ray of enfeeblement, a magic-user weakens an opponent, reducing strength — and attacks which rely upon it — by 25% or more. For every level of experience beyond the third of the magic-user casting the spell, there is an additional 2% strength reduction, so that at 4th level, strength loss is 27%. Range and duration of the spell are also dependent upon the level of experience of the spell caster. For example, if a creature is struck by a ray of enfeeblement, it will lose the appropriate percentage of hit points of damage it scores on physical attacks (missiles, thrusting/cutting/ crushing weapons, biting, clawing, goring, kicking, constriction, etc.). Your referee will determine any other reductions appropriate to the affected creature. If the target creature makes its saving throw, the spell has no effect.