After fully mastering his own power, Leon became a powerful Demigod.
Unlike the other Demigods in general, he had an unlimited supply of Divine Power from Sui Xiong. Therefore, he could directly increase his power to the limit where it did not need to be suppressed when he was on the Main Plane.
This was one of the advantages of Demigods. So long as they had enough Divine Power, theoretically speaking, Demigods could directly grow to a level comparable to a weak Divine Power. Such powerful Demigods existed in many powerful God Systems. Usually, they would humbly remain hidden and not make public appearances. But when their God Systems needed to face up to challenges, they often put themselves forward and become an ingenious army that was enough to change the tide of the battle.
