Is it possible to make Voltaic Fiend/Beast just the human term for the creature? I would see if you could generate a language for the creature, and it should be called, in its native tongue... how about Ur'maliikth? Cyborg mounts is an interesting choice - i like it alot. I would also try and gear their tech a certain way - we still in the concept phase, so no real limits. And remember, at least SOME of the tech they have should be inaccesable by humans - alien tech should retain some value therefor, so if they have, for example, a Vial of Nanobots that, when consumed, turns the user into a Voltaic Cyborg - kinda like a necromancer, but the key effect is that the nanobots give you a giant increase to regeneration, so you can even regenerate in the middle of a battle, and only a death blow can really kill you easily. Or fire. I would make them actually originally biological, normal carbon-based lifeforms, which have enchanced their entire civ beyond recognition with cybernetics. They should also have castes to represent what type of tech they have - like a scientist caste with a weaker lightning attack but a massive intelligence, and a sniper caste with a powerful, but high cooldown attack. By powerful, I mean like 1 hit kills. BUT, they are also very fragile. And as you suggested, even the animals of their civ are cybernetically enchanced. Also, if they are called Voltaic Fiends, that makes em sound aggresive. So you ought to make them raiders. Is all that cool?