A Fiend is a type of Demon. The class tend to be diminutive, especially with respect to their average demonic kin. Individually, they can be considered the least in combat ability and capability within the demon races. This does not discount the existence of various hero members of the class and some more powerful breeds. Nor should their separate size and power dismiss that en mass, a horde of fiends would be a serious threat. Fortunately, most found in the world tend to be non-hostile or individually aggressive.
Within the class, fiends can be divided into orders that are elementally aligned. Most known breeds may be split into fire and water groups, with the water subgroup - ice. There are also reports that some of the wraiths found in the wilderness appear to have been fiends in their former life. Some of the known varieties are as follows:
- Icefiend, found in cold regions, have been known to be environmentally threatened
- Pyrefiend, slayer monsters that require 30 Slayer to be harmed
- Waterfiend, which reside in the Ancient Cavern, the Chaos Tunnels and Ghorrock fortress