Without intruding on the discussion at hand at all, I'll just note in passing that I have introduced the term "Muhlatimic Dragons" in my game specifically as the name given to a breed of dragon the PCs "designed" for a "race" of beings that can create what I called "Starbeasts" in game- creatures which are themselves the size of entire planets. In other words, the Muhlatimic Dragons of my game are dragons which are planet-sized, and which the PCs not only know about but actually helped to design. They have one that orbits within a planetary system they helped create and populate, which they're hoping to keep in-system as a guardian and helper. They haven't actually talked to it much as yet.