Rivalry

A rivalry occurs when a dispute arises between two or more clans. Historically, a rivalry would involve disputes outside of the game (such as on fansites and clan forums) and occasional engagements during events such as PK trips, but could be resolved by an official war. However this trend has since fallen out of favour and most modern rivalries generally involve numerous PKRIs with no clear means of resolution. Dishonourable actions such as spying and leaking of sensitive clan information are commonplace.

A crashwar is the most intense form of rivalry, in which a clan will attempt to constantly disrupt all of the enemy's PvP events.