Information: A Guild Battle is a war that happens inside of a dedicated arena that both guild leaders agree upon.
Guild members can teleport (!gb) to the Guild Battle arena from any protection zone and won't be bothered by other players interfering. Inside of a Guild Battle, you have additional options such as reducing AoE spell damage or limiting the amount of players that can be inside at once. The purpose of Guild Battles is to promote a fair environment to fight each other and see who is the best!
You can start a Guild Battle at [War] Tyr at Thais depot +2.