Chimera
Chimeras are types of magical beasts that combine the aspects of several races. The Homunculus version is a humanoid which is capable of gaining these various racial aspects as additional or modified appendages by consuming the remains of monsters. The physiology of the Chimera reacts and adapts by absorbing the remains into the body and gaining their power.
Development
Often these homunculi are created using various combinations of monster blood and Black Beast corpses. While they do not have any shapeshifting powers as the origin of the Black Beasts do, it provides them with the adaptive evolving body that they have.
The appearance of a Chimera varies depending on the types of monsters they consume. While initially appearing relatively normal, but with beast-like eyes, they may eventually develop monster-like claws and feet, wings, and so on, essentially gaining new appendages and transforming their extremities while the core of the homunculi keep them from becoming more monster-like, like an actual Chimera monster.