The Dominion created a classification system to help agents identify eldritch creatures while out in the field.
Class A
Class A eldritch creatures aren’t usually a major threat. If anything, they are considered to be more of a pest. Class A creatures are also potentially tamable with recent development of Tamer classes being introduced to the field. There are very few tamers within the order that are active, most are within the research team still under tests
Class B
Class B creatures are creatures that have shown to have history of incidents with normal society. These are beings that have attacked when felt like threatened. Sharing similarities to that of normal animals. Some can take on more humanoid appearances, but not often. These creatures are also potentially able to be tamed, but there is only one on record as a success.
Class C
Class who are physically stronger or have stronger magical capabilities. These are beings that start to take on more humanoid like appearances. Class C are a higher threat to society and are to be taken out immediately when signs of aggression are present. Class C's mixed with mortals are deemed as "Were" creatures. Werewolves, werecats, etc. Depending on the state of the being, Were beings can be reclassified and re-identified through a series of tests. Were beings have been known to show Class C and higher traits.
Class D
Class D eldritch creatures are ones who are more recognized as humanoid like creatures. They take on more human-like qualities and are capable of speech. Due to their nature, most are taken out at first sight. There are small cases of Class D creatures who have a sense of humanity and morality. These cases are often influenced by the Dominion and placed under their Custody. Some may be closer to Class S due to their deeper magical connections to the rifts.
Class S
Class S is one of the most dangerous out of all of the other creature levels and therefore rare. These are creatures with higher levels of intelligence than previous levels. Class S are stronger, faster, and more skilled. They are also ones with deeper connections to the rifts granting them extraordinary forms of magic. Class S are also capable of communicating and learning on a fast scale. When a Class S eldritch creature is identified the creature must be taken out immediately unless directed otherwise by the Higher Command of the Dominion.
Class Z
Class Z has only been documented a handful of times. Creatures of legends can be considered Class Z such as Dragons and Arch Demons. However, the legends aren’t proven true and therefore unreliable. Z Class eldritch creatures are creatures with city destroying abilities. They are a threat to humanity and can spark an end to all.