We need something to fight over outside of TSB. Also, the possibles need to get increased or MR added for sure. This guild battle system is nice in theory but it doesn't solve all issues. Ruler in RBF was a perfect boss, dropped a really good item (this part was OP imo), but dropped it like a few times a month, and yet it spawned every day and gave daily PVP. Same thing could happen here if Beze dropped a random Ferken rather than a pouch of 8 insigs.
Add MR, make it cost like 100m, and you have an additional crone sink. Especially when GM chars die and it needs to be rebuffed.