Dragons

The vastly powerful dragons of old have passed from this world and are rarely found in this day and age. They are said to rival the gods in power, but having no need for worshippers since they created their own servant race in their own image, the Dragonkin. Dragons are said to have been the size of mountains and have left many magical wonders and treasures behind as they moved on from this world. Now they reside in planes beyond any which humans have ever managed to get to.