Could this be fixed to actually do something? Right now you claim the item and click it and it just gives you a buff icon, but it doesn't actually raise your stamina or provide any benefit at all. No one seems to know when/if it will be fixed. So we just keep trying it every few days to check.
Not that it matters much on phinigel with out of combat regen. But would be an interesting fix if they went back and fixed acumen/invigor spell lines to have small bumps to endurance regen