This spell empowers the shukenja to see through a nonmagical disguise (that is, one composed solely of makeup or altered clothing). It can determine if an individual is under the effects of & friends spell. The penetrate disguise spell does not reveal magical disguises or illusions, nor does it reveal alignments, intentions, class/profession, or true appearance. It merely points out that the individual is posing as someone else. The subject is allowed a saving throw vs. spell, and if that saving throw is successful, the disguise is further enhanced in the caster's mind as being real.
Notes: Common for oriental priests; otherwise, very rare.