This demon corpse was the "Saint Demon Heavenly Corpse" that had enabled the Saint Demon Sect to rise to prominence in its early years. It was a top-tier superior demon corpse, four to fifty percent stronger than ordinary cultivators of the same rank.
In its early years, the Saint Demon Sect had specialized in controlling demon corpses.
But as the sect grew ever stronger, the cultivation of the demon corpses under its command also rose ever higher.
However, they discovered that the higher a Saint Demon Heavenly Corpse's cultivation became, the difficulty of advancing its realm grew dozens of times greater than that of an ordinary cultivator.
Perhaps this was the sole flaw of such a powerful top-tier superior demon corpse.
Now, the Saint Demon Heavenly Corpse in Saint Demon Old Man's possession, which had reached the Nascent Soul Middle Stage, had existed for nearly three thousand years. Its lifespan was nearing its limit. Though it had been nurtured through several generations of the Saint Demon Sect, it had remained stuck at the peak of the Nascent Soul Middle Stage, unable to enter the Nascent Soul Late Stage.
At that moment, the Saint Demon Heavenly Corpse, which looked just like an ordinary person, also transformed into a phantom. It directly withstood Azure Sea True Lord's Azure Sea Azure Sky Magic Seal and became entangled in battle with it.
Saint Demon Old Man had intended to seize this chance to cleave apart the Blazing Sun Golden Crow manifested by the Blazing Crow Bronze Bell of the Blazing Sun Immortal Sect. However, Azure Sea True Lord and Red Sky Old True Lord successively summoned several Third Rank Spirit Treasures or Spirit Treasure Prototypes, barely stopping Saint Demon Old Man once again.
Time slowly passed.
This battle continued for a full half month,