7) Thou Shalt Not screw other Merchants over

Learn how to avoid price wars in Ragnarok Online by not undercutting other merchants. Maintain stable prices for mutual benefit.

Undercutting is the practice of vending the same item for a cheaper price than another merchant in an effort to gain more business. This can lead to a cycle where merchants continuously lower their prices, resulting in a price war where both parties ultimately lose profit.