Exchangeable Items
From Exiled Kingdoms Wiki
Some NPCs allow you to bring a certain amount and combination of items and receive something else in return. This typically, but not always, requires a quest to be completed first. Many of them involve Plants, but some involve Gems or Hides. This can be repeated as often as you like, which if you really need the items and this is the only way to get them, can result in needing to "grind" for them.
Alternatively, see :