Inventory soul bound charges.
As the name suggests you can soul bound your inventory based on the book. In /ecraft there will be a soul bound section for this. 9 normal soul bound = 1 soul bound inventory charge, while 36 soul bound is 4 charges. These charges will decrease when you die and should be only available to people with a level 50 brewing skill, since it relates to health boosts. These restrictions will keep it balanced but make it very useful. You can even sell this on the official Dogecraft shop for 50$ for infinite charges. These won’t be able to be transferred and prevent any server experience. This will make it balanced but very fun to use, also very expensive may I add. This has been my suggestion and happy holidays! -PlagueReaper098, Leader of the Ogryphia Empire