Seers have an innately enhanced memory and understanding of Divination and Mysticism. Has access to Spirit Vision, Dowsing Rod Seeking, and Spirit Pendulum Divination. Has no combat abilities.
Corpse Collectors seem to not be affected by the sight and smell of corpses. The prime example of a Corpse Collector, Frye, seems to be used as the person who deals with corpses that are produced by Nighthawk duties. Has access to Spirit Vision and can innately see evil spirits and wraiths without having to activate Spirit Vision.