C1604 The First Day Recorded in the Annals of History the Day of the Emperor
Back then, when Dian Feng was crossing the Monarch Tribulation, even the afterimage of the Heavenly Monarch Yuan appeared.
And it was also very difficult for him to become a Immortal Tribulation. The Heavenly Monarch Immortal King had many emperor's shadows, and he had to use some methods to get through them.
If they really were to fight head on