Pokémon that were mutated by the miasma thousands of years ago. These creatures are larger and more aggressive than regular Pokémon, and pose a serious threat. They are known to not only attack people, but Pokémon as well and can be detrimental to towns and villages.
All documented attempts at taming there creatures have ended in failure, and regular Pokemon can’t seem to establish communication with them. Even Pokemon living out in the wild must be ever vigilant of Feral Pokemon, for they both share the same habitats. The only exception being Dens, which is where Feral Pokemon may be found exclusively.
In order to combat the ever present threat of Feral Pokemon, towns and villages have formed guilds that consist of brave souls known as Hunters. As their name states, they venture out into the wild and will either slay or capture Feral Pokemon. If captured, they will be brought back in order to be studied by Researchers. Hunters, Researchers, and the guild work together in order to discover the strengths, weaknesses, habits, and anything else that assists in understanding and combating these dangerous creatures.

Basic Information

Biological Traits

Other than their size, Feral Pokémon can be identified by other features such as leathery wings rather than feathers, sharper horns and claws, larger scales, thicker hides, . It can vary, but overall   
being able to tell a Feral Pokemon from a regular Pokemon is rather . One of the universal, distinguishing features that all of them share is their ability to enter a heightened state of anger, commonly known as “enraged.” When Enraged, Feral Pokemon are far more powerful and fare more deadly and give off an aura that closely resembles miasma. 
Feral Pokemon are much larger than their normal Pokemon counterparts. Some also have more scales, horns, or spikes than their smaller counterparts.
They are also known to be much more powerful than their smaller counterparts. Although they are only able to harness the power of four moves, just like normal Pokémon, their attacks are far more devastating.

Additional Information

Domestication

Unlike normal Pokemon, Feral Pokemon cannot be domesticated. As their name states, they're feral and see people more as potential meals than possible partners. Many have  and are currently trying to find ways to tame them, yet nothing has come to fruition.  Once Feral Pokémon become a certain age, they cannot be handled .

Uses, Products & Exploitation

Feral Pokemon have a vast variety of uses for all of their parts. 
Their meat is used in cooking Their claws, teeth, bones, scales are used for Weapons, Armor, alchemy, magics,