Chaosmancer
Legend
I don't think rock gnomes need to be a joke, but I don't think being an engineer is a sensible defining characteristic for a species or a subspecies. An engineer is a profession, and it is represented in the game by a class called artificer. We are not in the red box era anymore, race and class are separate things!
But Smith is?
Farmer is?
Ranger is?
Because that is Dwarves, halflings and Wood elves, which are fine. But Rock gnomes are a problem?