Guding and Fu Tu's battle suddenly evolved into a struggle between the True Dragon and the Emperor.
Seeing the Purple Robe Emperor leap up, the True Dragon was not willing to show weakness either.
The True Dragon was one of the foremost among the Ancient Divine Beasts, and when cultivated to the ultimate level, it could even transcend a True God.
The Flame True Dragon summoned by Guding was naturally not a real True Dragon, but merely a special effect of the Cultivation Technique which drew upon a whiff of the True Dragon's aura.
As for the Emperor, he was a powerful existence that had mastered the Martial Arts Realm to the utmost limits, possessing at least the peak combat power among True Gods. It was precisely because of this that when a strong practitioner understood the same Martial Arts Realm reaching an exceptional level, there was a certain chance of triggering the mark left by the Emperor.