One person: Full level of understanding, comprehend the Eight Wonders of Immortal Skills

Traveling through the world below one person, Li Tong gained "full level of understanding"!
As long as he has observed the ability, he can learn it and improve it to a higher level.
So, observe Zhang Chulan's "source of Qi body" and understand the "source of immortal energy"!
Observe Feng Zhenghao's "Sending Generals by Constraining Spirits" and gain insights into "Sending Generals by Constraining Spirits"!
Observe Wang Ye's "Fenghou Qimen" and feel the "immortal level Fenghou Qimen"!
Observe Lu Jin's "Tongtian Lu" and feel the "Tongtian Immortal Lu"!
Observe Ma Hongxian's "magic machine and a hundred refinements" and realize that "a hundred refinements will make you an immortal"!
......
As a result, the Eight Wonders of Magic became the "Eight Wonders of Immortal Skills" in Li Tong's mind!
Heir of the Eight Wonders: "Are the Eight Wonders we inherit fake?"...