This skill is similar to the Inherent Skill DISCERN UNDEAD although this skill will only give a visual recognition of the Undead. As such this skill is not as accurate as the Inherent Skill and an Undead creature may be mistaken for another type of undead or creature. You therefore receive only the categories as shown in the DISCERN UNDEAD section. For example, a Ghast might be mistaken for a Ghoul or a Fhoul, and a Spirit Lich may be mistaken for a Spirit Warrior.