Very few dragons can take human forms, Priapus can. The elders sent him as the Gods' messenger to observe earth to make sure the Shadows doesn't grow. While weaker in human form, Priapus is still powerful. His ability to control fire is beyond any Arcanist's. To limit his power, Draconians inscribed extra prismatic runes around him. Priapus is very proud to be a dragon. He'll hold back and play with you when he's in a good mood, but turn you into ash when he's angry.