Thats great, my closest friend and i would do the raid 3 times a week every week, and he could not get the mythoclast, while i would get one every week it seemed(i think my total is close to 15). I would get it week after week and at a point he would just get frustrated and get off the game because he couldnt get it, but on the other side while he wasnt getting vex he was getting most other exotics. And while i was getting vex i didnt get exotics like thunderlord and gjallarhorn, so it evened out and he eventually got it, although it wasnt in it's prime