Greater Dragons differ from other dragon kind in a couple of different ways. Greater dragons are the largest of the dragon family, with longer powerfully wings, and jaws that can crush rock and metal. They have the most command over magic, and can use their inherent magic without the need to tap into the weave. This allows them to take on a more humanoid appearance far sooner than most of the other dragon's, with a much higher control.
The breath of a Greater Dragon is often less precise than that of a lesser Dragon. However, the breath not only covers a larger area, it is also stronger than the other counterparts.