i dont know if this was intended or not, so dun hurt me cuz im ignorant D:
buuuuut...
every time you log out, and log back in, regardless of your hp or prayer before logging out, you have full when you log in again.
i think its happened alot, but ive just noticed it now lawl :P
just throwing this out there, since endura seems to be one of the few servers where you actually gotta work, so miraculously getting all your hp/prayer back in a few seconds didnt strike me as something the developers would do.
soz in advance if this is actually SUPPOSED to happen D: