A Shadowraith is a kind of monster. Dark Yabu is a prime example of a Shadowraith.
- Main article: Wraithheart
After sucking energy from the Rift Hub, Shadowraiths have everlasting hearts that continue to beat even after their bearers pass on. Even after 700 years, the beating never stops.
As Darby describes them, Shadowraiths are like cockroaches, almost impossible to kill. They can sustain heavy damage, as demonstrated by Dark Yabu when he had an axe thrown at him by Vargas. The dark one showed no sign of injury, even though the blow apparently angered him.