Thanks a lot for the quick reply. Just to clarify as well: there is no way to "trade" potion counters between characters, correct? So if the Paladin has no potion counters, no one will be able to use Elixir until he acquires a potion counter through attacks, correct?
The first bit is correct. But whenever you roll a potion it can be given to any hero. So the Barbarian could roll a potion with her attack but the Paladin could pick it up so it's not just through the heroes own attacks.