Among the inheritances the Mystic Gate Clone had obtained from Ancient Demon God Yan Chen was an immensely powerful Soul Power secret art that required the Battle Soul Blood Banner to unleash.
This Soul Power secret art was called Battle Soul Roar. It could only be used once the Battle Soul Blood Banner had advanced into an Acquired Spirit Treasure; the higher its grade, the greater its power.
The Battle Soul Blood Banner had been raised to a High-grade Acquired Spirit Treasure within the Demon Soul Realm. Combined with the Mystic Gate Clone's Dao Realm cultivation, its power could not be called heaven-defying.
Driven by battle soul blood energy and a secret art, it assaulted the soul or primal spirit. At worst, the soul would collapse on the spot; at best, the soul or primal spirit would be briefly intimidated and affected.
It was considered an auxiliary Divine Ability and Secret Art.
Moreover, in terms of range and power, it was still inferior to a Soul Demon King's Nightmare Roar.
However, Battle Soul Roar possessed an effect that Nightmare Roar could never match.
It could not be defended against!
Fundamentally speaking, a Soul Demon King's Nightmare Roar was still a Soul Impact. As long as one's Soul Power was sufficiently strong, or one possessed treasures or talismans capable of defending against Soul Power, one could remain completely unaffected.
But Battle Soul Roar was different.
Battle Soul Roar was an assault directed at Soul Power, a composite of many forces—soul, battle intent, killing intent, Baleful Intent, resentment, and more.
It was not something that could be resisted merely by having sufficiently powerful Soul Power or treasures that defended against Soul Attacks.
According to the inheritance of Ancient Demon God Yan Chen, only two circumstances could grant immunity to Battle Soul Roar