Thorns one of the most difficult bounty to get, and it's worth it, you just have to wait until you find a void, I know it sucks but if they change the dmg to solar or arc you known it'll be the same issue with other players, me personally have no real arc damage weapons and my main is warlock so I'm screwed with arc burn and arc shields, and the point of void is its story with the warlock anyways. I was lucky enough to get the bounty on my warlock, it's hard yes but bits worth it, just think when you do get it you'll be able to laugh at all the people complaining about how's it's OP and they want it nerfed because they're tired of getting killed in crucible. And xur won't sell bounty exotics for obvious reasons. Also buying stuff from xur is more earning it than getting rng drops. But less than earning from bounty of course Super good advice was my first bounty and I was like, damn that was easy, then I got thorn and thought, wtf this is ridiculous, but I got through it. It's a unique gun that's worth it.