What is the purpose of ores, jewels, cards and “omoks”?
Ores and Jewels are refined and used to synthesize equipment, usually gloves and boots. However, since most class gloves are not used and both gloves and boots are widely available in the free market, they are pretty much useless now. The only ores and jewels really worth keeping are Dark Crystal and Black Crystal. Other jewels have some purpose in quests, but for the most part you should just sell them to the shop NPCs. Cards and Omok pieces can be taken to the Game zone in Henesys (near Athena Pierce’s tree) where you can trade them in for Minigame rooms. You can set these up in most places to play a game of Match Cards or Omok with people.