Dragon Price Yuan Fanfic : Sacred Devouring Dragon

What if Zhou Yuan got the sacred dragon blessing along with taotai blessing. What would have happen ? What would be result of the dual blessing of his. It will follow the main story along with the few changes of mine here and there so keep in mind. and obviously it doesn't belong to me neither dragon price yuan or images I will be using if you are the owner and you have problem tell me and I will remove it.