Ive farmed over one hundred guards and got one drop, and of course it was something that I could not use. If you want to keep people interested you need to increase the drop rates or change the respawn time. It takes roughly fifteen minutes for most bosses to respawn. You can kill at most eight per hour if you're farming two bosses at the same time. If it takes up to fifty kills for one person get a drop that's about six hours an entire group has to wait for one person to get a drop. Personally I'm getting sick of being on this game to an extended ammount of time with aabsolutely no reward.