Asgorath (pronounced: /ˈɑːzgɔːrɑːθ/ AZ-gore-ath), more commonly known as Io in the Outer Planes, was the dragon deity of creation. He (or she, as some traditions suggested) was regarded as the creator of the multiverse and of dragonkind, and he manipulated the destinies of all dragons by operating in a way that nobody suspected his involvement. His holy symbol, an unadorned circle, represented totality.
Asgorath never manifested himself before his worshipers. However, he made his existence felt as a powerful presence in their minds. Asgorath, however, could manifest physically if he wanted to, taking on the form of any dragon, and even in forms of other draconic creatures, such as pseudodragons. The oldest myths of dragonkind claimed that Asgorath manifested physically only once, during the act of creating the multiverse. Those who believed in this myth believed Asgorath was so huge, that even his scales were larger than the largest mortal dragon that ever existed.