I hope those of you who bought the Gjallarhon from Xur last week are having fun with it. Because it's one cruel joke from developer Bungie. You see they're going to nerf it soon. See Destiny Weapon Tuning 2.0.
By the way Bungie this blows up your specious rational for nerfing or weakening the weapon. You argued that people were being excluded from Raids and Nightfall strikes because they didn't have it. Now, I imagine a lot of people have it. So there is no longer any reason to nerf it. But here's my opinion. Bungie must extend the game to Destiny 2 and also get players to buy the September DLC, The Take King. Nerfing and making year one Legendary weapons obsolete pushes players to purchase the DLC with the promise of more potent guns. Of course, I've got a fist full of Glimmer to bet that you will have to find those good guns, and level them up. Look, the weakening of all first year weapons doesn't help the gamer. It does help Bungie milk every last dollar from the gamer.