Diamond Cyberdogs

The Diamond Cyberdogs were created pre-war as an attempt to create the ultimate soldier. With durable robotic limbs, neurochips in their skulls giving them the precision of a computer, and a pony’s brain linked to them to allow for creative and abstract thinking, they were, along with the Robopony, the pinnacle of cyborg technology. 

After the war, the Diamond Cyberdogs were freed of their masters’ control, and soon became focused on not only growing their numbers, but gaining access to suitable brains. A lack of brain preservation technology meant the pony brains within their heads would deteriorate after roughly half a century… and the difficulty of preserving their brains would lead to them developing a culture that was rather… cavalier with the abuse and damaging of the minds within their skulls. As a result, they raid far and wide to acquire said brains… and as a side benefit, replace the brains they take with a robot’s processor to create a perfectly loyal slave.

They live out the first few years of their lives as normal Diamond Dog pups, but when they come of age they are cybernetically modified, and sent out into the world to acquire a suitable brain to replace their original. Once they have done so, their original brain is ripped out, neurochips containing copies of their memories are installed, and their stolen brain is implanted- at which point, the new Cyberdog smugly throws away or sells their helpless original brain. Their original brains understandably end up bitter about this, because they are lied to from birth about how their consciousness is tied to their brains.