[@Asuras]

That is fair, I added the stipulation of willing subjects in the actual magic part for that reason, but I should probably add a bit about their morality also not allowing unwilling subjects as well. They are more, "look at this cool bug-cat/gun/hunting lizard thing I made" than forcibly inducing trans-humanism in others. Also controlling a human is hard, possibly impossible, better to train a dog, chip a beetle or just use AI for servants anyway.

Though I imagine there might be some people interested in minor modifications (healing injuries, non-disfiguring cybernetics/bio mods, cosmetic work, etc. seeing as people do this IRL already with plastic surgery, prosthetics and Biohacking) or using external things made by them like weapons or creatures but yeah, both I and he can see being stuck in a massive flesh monster that you can only get out of if someone else dismantles it for you would be very unappealing for basically everyone.

being a giant monster is a nice place to visit, I wouldn't want to live there tough.