Got it from Atheon hardmode run, my friend has been trying to get one since day one, but his rng status blows. I was being all but carried through it. When it dropped, I thought it was the dragon's breath and was like sweet my first exotic rocket launcher. Upon opening my inventory I let out a slight gasp, just then I hear my friend literally throw his headset and controller across the room breaking his headset. Im on Skype with him at the same time. He ends the call and rage quits the clan, the game, removes me from his friends list. I couldn't help but laugh, next day he calmed down and re-added me but it was so funny at the time.