I have this idea from Saga of Ryzom. There are areas with farms. This farms can be claimed from guild. The farms produce XP cristalls for an Xp boost after using them. The farms have different Tiers and the crystalls also. Other guilds can attack these farms. After clicking an attack sighn both guild have 24 hours time to organise defend and attack. Guildless players can entry this areas for the fight too. In a window they must decide if they want to help defending or attacking. Nice for ingame politics.
