What Is BUFF That Can Be Retained Permanently?

On the first day of the alien trial, Lu Sheng was bound to a special skill [Perpetual], which could keep any "limited-time effect" buff permanently. Only twelve hours, but a novice blessing that restores 25% of blood volume every second and doubles experience? Directly lock it into a permanent blessing. Attribute enhancement potion? Next attribute point income increase? Directly locked into permanent gain. As time passed and the level increased, Lu Sheng could lock more and more effects, until when he faced the god, the god almost fainted when he looked at his status bar.