u/Kurarpikt

My initial thought would be to say it’s probably not possible, but at the same time we have Palm, who was able to enhance a crystal ball. Although that might not be a good example, since we don’t really understand how her former ability works.

Personally, I’d say such an ability would fall more under Manipulation, Specialization, or Conjuration.

But then again, is Enhancement limited strictly to physical, material things?