The Wraith of Mac Mordain Cadal
Wraiths are undead that look like dark shifting man-shapes, with glowing red lights where eyes should be.
Their presence brings a chilling sensation.
Wraiths feed by drawing life from living creatures' body. Although they aren't killed, they like not the feel of cold iron, thus making swords a defense against them. Also, they don't like smoke.
Wraiths are minor aspects of the Dread