blue potions are certainly good, but I would like to have a more reliable and independent way to restore stamina, independent of the constant availability of potions or food
Um, dude, I don't want to find out other ways to restore endurance, I just want a resource like Stamina to be made renewable and independent of the availability of other resources.
So that the speed of endurance recovery depends only on the state of Lona injuries, the passage of time without sleep and other things