Vune thinks
hmm. Doesn't ring any bells. Though melding things together isn't all that big a feat. Pretty common trick honestly, its actually how chimeras are made usually, though most mages wouldn't do so on humans or other sentient beings. Both unethical and rather dangerous. I recall an old former classmate of mine decided to meld several men and some beasts together to make a super strong guard, and well she made a super strong guard alright, which promptly killed and ate her. She wasn't a very smart woman, certainly not a nice one either.
But monotone voices. That's strange to say the least. Sentient undead possibly, or just magical servants of another kind. Could also be a custom creation. Like those Une i made who all have grating voices. Can you explain what this mage looked like? Was he undead in any way? A lich perhaps? Many of them are the type to do horrible things like that.
Regardless doesn't really matter. I know he isn't a member of the Mage guild, we have rules against things like that. Again, not so much for moral reasons but more so for practical and safety ones.