Ever since Ye Zhen's Mystic Gate Clone had been refined, it had always been in a state where its cultivation could not keep pace with its realm.
The Mystic Gate Clone itself was actually at the Early Dao Realm, but the wisp of primordial spirit Ye Zhen had transferred over had always been weak. Its cultivation recovered slowly, and its cultivation progress was extremely slow.
Over these past several hundred years in the Mirage Dragon Pearl Temporal Space, it had constantly cultivated its primordial spirit power. After several centuries of arduous cultivation, the clone's primordial spirit had only reached around two-thirds that of Ye Zhen's main body, and its cultivation had only just returned to a normal level.
However, the Mystic Gate Clone's original body was of the Three-Eyed Demon Race, and it had inherited the legacy of Ancient Demon God Yan Chen. It primarily cultivated all kinds of Negative Energy.
Although it had been cultivating all these centuries, its progress had remained rather slow. After all, cultivating Negative Energy was only effective in places where Negative Energy was incomparably abundant.
Yet over these twenty-one days, the Mystic Gate Clone's cultivation results had matched several years of past cultivation.
However, the greatest gains had gone to the Battle Soul Blood Banner.
In fact, as early as ten days ago, through its constant devouring within the Bloodlight Aura, the blood energy stored within the Battle Soul Blood Banner had already reached its limit.
What disappointed Ye Zhen immensely was that after the high-grade Acquired Battle Soul Blood Banner had devoured blood energy to its limit, even when Ye Zhen used his primordial spirit power to compress it with all his might, the Battle Soul Blood Banner still showed no sign of breaking through its current grade.
Actually, Ye Zhen had anticipated