Hecate

Hecate, who most people simply refer to as "The Dragon God", is the god of Magic and Power. It's name and it's domain are known because it announced it when it arrived, according to most accounts. This dragon was the first otherworldly creature that had appeared, and it had flown across all of Europe before diving straight into the ocean. This dragon was of impossible size, and the hole it burrowed about 100 miles off the coast of Spain is so large that it isn't possible to explore it.

Hecate's nature is almost completely unknown. Followers of The Dragon God are turned into the Dragonborn, and are the ones most likely to be proficient in the manipulation of magic. Her true desires are unknown, and most Dragonborn who receive any kind of communications with her swear themselves to secrecy.