lol the war
there r 2 worlds where theres high lvl mobs lvl60+, guild wars (i believe) and guild fortress can be build but they r the only mobs that drop equips B+++ to A+++

once u enter, u have to w8 till the war is over

i usuall go afk or log off for few hours
guild fortress collects rare gems from the ground for the guild to collect later, (never built 1 before trial is over)