Battlegrounds is a special PvP service available on all the servers. You have to travel to Champion's Respite by clicking on a brazier with three wings which can be found in all major cities. Next to the brazier are also 2 Questgivers: Scion of Discord and Scion of Discord , but you can pick up these quests also once you're at Champion's Respite. The reward merchands are also at these staging grounds. You can pick up new quests from the 2 Scions of Discord once a day.