I'm having some issues where I can't find any potions for sale. I bought a bunch from shopkeepers like 6-8 levels ago, and now I finally used them all up and am at the invasion of the Battle Tower to take it, and I have no potions, and cannot fight the groups of 5+ alone without any. Is there any way to refresh Potion supplies in shopkeepers? I could play for another 10 days and it seems the NPCs never get more potions.
