Dark Sun: The Scorched World of Athas
Wraiths hate the living and seek to create more of their kind by killing mortals they encounter. They are joyless beings that dwell in the darkness.
Oblivion wraiths move into melee quickly catching multiple enemies in their necrotic aura. The attacks of these creatures can blind their victims to the wraith allowing the wraiths to attack with greater effectiveness.
Wisp wraiths crowd opponents, slowing them with shadow caresses.