"Undefeated General" was the honorific name of Zhao Yun in his previous life. In his previous life, because of chance, he got the dragongall.
After having the dragongall, Zhao Yun can use the power of the dragongall to transform into a dragon, because the dragon can call the wind and rain to form a special environment, the dragongall also collects the souls he slaughters in every battle, and his fighting power will become stronger as the battle souls accumulate.
At the same time, he is also the hero with the most mysterious power in the Thoth's Book, and will never be soft in the face of the undead. He believes that only death can turn the world around, and the world can form the most stable and secure system only when all souls are unified and regulated. He felt that constant killing was the only way to stabilize the world and find its secrets, and also felt that he would one day take the other heroes of the Thoth's Book and become the backbone of the world, because this belief also made him more lighthearted.
However, Guan Yu had warned him that excessive use of force and magic would make him bloodthirsty, and Guan Yu had suspected that the soul within the dragongall was backfiring on him, which is what made Zhao Yun so bloodthirsty, so Guan Yu took Zhao Yun to choose the Thoth's Book , believing that there would be magic or power in the book that would help Zhao Yun from being the dragongall backfiring. Currently only Guan Yu can control that bloodthirsty impulse when he is on a mission with him."