Open World PvP

PvP in the Overworld
You have the option to turn on Overworld PvP in the General Settings tab. If you have PvP on, you can attack, and be attacked, by any other with PvP also turned on. The only exceptions are inside of Highsteppe, Dungeons, Raids, and Safe Zones such as Graveyards.

Risk & Reward
As long as you keep PvP on, you gain 10% extra Experience. However, you run the risk of losing all your tradeable items if you die. Note that even if you die against a monster, you will drop all the items as well. You also will not be able to benefit from Healing abilities of anybody except other PvP enabled players in your party.