Wraith

Wraiths are among the most powerful undead beings. Their chilling touch drains the life and soul from unfortunate adventurers. Not even in death can one escape the ghostly wraith, for the foul creature's victims rise again as spectral servants of their murderer. Their single weakness is sunlight, which renders them completely powerless and invisible (the dark robes they often wear remain visible in sunlight however).

Wraiths are the manifestations of tragic or violent deaths involving dark emotions, ones so powerful that death itself could not still the intense hate, passion, or jealousy involved. They especially turn their ire towards any who would disturb them as they haunt decaying deathbeds, ancient battlefields, crumbing treasure vaults, and other places that perhaps had special meaning to their lives (or deaths).