In most MMO games PvP is just a separate part that does not affect the game itself. But in Elder Scrolls Online it is implemented into general game story as Alliance War. Three alliances are fighting between each other and you are the member of one of them. Your impact into world PvP helps your faction to win Alliance War and to control Imperial City. When your faction controls the Imperial City it is possible to challenge Molag Bal and his armies. Here's the [ Register or Signin to view external links. ] . Hope it'll be helpful to you.