Illusion arts were not widely practiced in the Jianghu. Only the White Lotus Sect and the Phantom Demon Path specialized in this path.
However, the Phantom Demon Path had rarely produced any Divine Bridge Realm experts, while the White Lotus Sect's illusion arts followed a different route from the Phantom Demon Path's pure illusion arts that wounded through illusions alone. Thus, no one knew what illusion arts would look like when developed to their pinnacle.
Yet now, they had seen it. Heaven knew what sort of illusion Su Xin had laid upon Xuan Ku, but it had actually caused Xuan Ku to be injured and cough up blood within the illusion itself.
At this moment, within the illusion, Su Xin was still attacking Xuan Ku relentlessly, seeking to kill him there.
If Xuan Ku were slain within the illusion, he would not immediately die in reality, but his mind and spirit would suffer a devastating blow.
Simply put, an illusion was the manifestation of a person's will within their mind. Your will had already been killed once, so you might even subconsciously believe that you were dead. Once such an injury manifested outwardly, even if the martial artist did not die, they would be little better off than dead. Destroying someone's will was far harder than destroying their flesh.
Just as Su Xin had driven Xuan Ku into a dead end within the illusion and was preparing to use the ultimate sword technique Sword Transforms Three Realms to completely slay him there, a flash of brilliance suddenly appeared in Xuan Ku's eyes.
It was true that his memories had been sealed, but his subconscious remained. Indeed, Su Xin had even exploited this very point when constructing the illusion.
However, when Su Xin had used Sword Transforms Three Realms outside earlier,