Before starting battles, you'd better collect necessary items. So, trade with an NPC is essential before setting off in this archlord online private server. Talk to the NPC, click ‘Buy/Sell’, drag the item that you wish to purchase or sell between the store and your inventory. You will be asked to confirm the trade, click Yes to complete the transaction, No to cancel. You can also click the right mouse button on items to start a transaction. Once finished, click the Close button at the bottom of the store.