in the early days of destiny exotic bounties were rare to come across. so when I found one I was ecstatic. I blindly chose one and it turned out to be the thorn. I had no trouble with the bounty until the very last part, I struggled for a while trying to do it myself as a level 24( I had not found destinylfg at that point) but after a while I gave up. I was messaging randoms at the tower when someone finally decided to help me out. he turned out to be a really pessimistic squeaker, but I was desperate. after about 2 hrs him and I finally defeated xyor. he didn't have the bounty though so he didn't get the weapon and he knew that he wouldn't but he helped me out anyway. afterwords we went back to the tower and turned in a couple of bounties and guess what, he got an exotic bounty! he chose the thorn and together we completed the bounty yet again and at the very end of it we had our beautiful, hard to use, pre-buff thorns.