Play by the numbers... 3 nightfalls 3 exotic chests in vog 3 hard atheon kills 3 deathsinger kills 3 hard crota kills Open 3 big chests in poe (assuming you can get 3 keys) There's 18 chances there. Every week Failing that... just consistently come last in crucible. I got the gjallarhorn at a little over 150 hours. It's not about the sheer volume of time put into finding a gjallarhorn but how you use that time