Duskwalker

The first duskwalkers manifested as the result of a bargain between two powerful psychopomps, the immortal guardians and guides of souls after death. One believed that certain souls who helped preserve the cycle of life and death but had their own lives cut short deserved reincarnation, while the other felt this would too greatly violate that same cycle. In the end, the duskwalkers rose from a concession between the two that allowed such rebirths to occur but limited their frequency—only a finite number of duskwalkers ever exist at any one point in time.