Darien

(you look in utter astonishment as two large black Wings emerge out of the back of your Son's back and large horns formed on his head while the rest of it completely changed it's shape, his arms and legs turn into massive pillars ending in gigantic claws, and a tail springs out of the lower end of his back, it is undeniable your Son transformed in to A Dragon, the mightiest of all legendary beasts)