I need to decide on a name for them, but ill do that while im drawing like i always do
(Name) is an Experimental life form that was originally created with noble intentions. That is; to boost the populations of nearly extinct monster speices with artificially created monsters. Unfortunately, (name) was created with a defect that made it so that he could not produce his own magic, and has to be fed magic from an outside source. Deemed a failure, no one thought much of it when (name) vanished, thinking that the skeleton had parished.
One of the scientists had taken (name) and tried to make a weapon out of them against the humans, programing a 'Feral' state into their dna. This state, triggered when (name)'s magic drops below 20%, will cause (name) to attack anything with high levels of magic and consume them in a desperate attempt to restore its own magic stores.
The experiment was bought to light when (name) broke free of its containment while in transit to an area where a human had been spotted. (Name) successfully killed the human, but also killed several monsters before it was brought out of its feral state and recontained. The scientist involved was arrested, and (name) was taken in by another scientists family who found a way to safely and reliably provide (name) with the magic he needs to survive. (Name) now works at a restaurant as a server and paints as a hobby