So I took a break from destiny, but I came back to play through the prisoner of elders because it sounded fun. I finally beat Kell of Kells today and unlocked the POE. I was ready to play but I thought I'd finish my weekly challenges and buy gjallarhorn from xur making sure I wouldn't miss out. So I go through POE and we drop to the treasure room and I have a key on me I got from doing bounties for the queen and next thing you know, I unlocked 3 strange coins, a legendary autorifle, and another gjallarhorn. I don't know if I should ask xur for a refund or be happy I now have 2 copies of the best gun in Destiny? Either way I'm happy and felt like sharing this.