I don't think the thorn is op. I've been playing a lot of crucible recently and I've noticed it takes 3 shots and the burn will kill you. 2 head shots and it's possible to die. Now you may think to yourself "if this burn wasn't so ridiculous I would of survived that gun fight" but what I've come to realize is that if you died from the burn you would of been flat out killed if it was another handgun. If I remember correctly, my thorn hits 87's in PvP with 7 burn counter. My hawkmoon hits 90's in PvP and 120 if I get the bonus damage bullet. I don't know how much my last word hits because I just rapid fire from the hip with it. I barely use that one. When I play PvP and kill my opponent but die to his thorn's burn I tell myself I would of died before I killed him if he was using a different handcannon. I get almost all of my kills from a legendary shotgun called judgment 6. I typically come in first and rarely get in position 4+. I think the exotics have a big bark but can be out matched.