Revenant

'The Returning'. A most apt description of these Hellwalkers, they who are bound to return from death time and time again that they might serve the will of the Dukes and Princes of Hell. Upon swearing an eternal oath to their liege, they gain the immunity to Hellfire, eternal life, and the ability to respawn in Hell if defeated. The precise contract between them and their master will vary, some merely bound to hunt for all eternity, while others desire to ascend into Demonlord or greater status.
==Physiology==
Revenants are strictly speaking, either the deceased made alive again or those who are living who are able to defy death. Their species of origin means little, for the result is the same: unyielding, eternal servants. They may wield Hellfire and other hellish abilities, or rely mostly on their own talents, whichever they so chose. The hellish powers are often the work of borrowed power from their masters and often indicate more harsh and strict contracts.
Due to the contract with their lord, they may not permanently die, so long as they fulfill the terms of their pact. While their physical bodies can be destroyed, they will always reform in Hell. Upon their contract being revoked, if they have actually died before, they are immediately sent to the Yama for punishment, if not, they return to the mortal world, but doubtless to be pursued ere long by Reapers and the like. 
== Notable Revenants ==
The Hunters
Princely Flames
Lordly Hounds
Megalia Lunar