I have played plenty of the game, and I have had plenty of other exotics before Gjallarhorn: such as Hawkmoon, Mythoclast, Ice Breaker, etc. The weapon technically does deserve a slight nerf in my opinion, and that is my exact point. 3 gjallarhorns. One gjallarhorn makes a massive dps difference, this week's nightfall, for example, with my gjallarhorn I was basically able to slaughter Omnigul with 7 rockets after my teammates took down her shield with fusion rifles. The weapon is simply too powerful, it should in my (possibly unpopular) opinion be nerfed anyways. Plus, a 17 second atheon kill on hard mode kinda says something.