Yaun

The Oracle crafted Yaun to govern and keep balance over the others or guide as they maintain all aspecks of mortal exsistance. Unlike the others Yaun has all prior knowledge from all his life times.
Over the course of long melenium Mephite corupted the mighty protector of the Pillars and now Yaun is an agent of evil. To offset the great imbalance of the world from Yaun's betrayal for sealing the other pillars of creation in the nine hells for a time. Durring that time Yaun began destroying each dragon progenator's protective seal. The Oracle interviened and freed her children who were able to over come Yaun.
The other dragons were bestowed with fore knowledge their next lifetime to better prepare for Yaun's trechary.