At least on my game. Been trying since release date to get this damn chest piece and I can't ever get it. Every chest engram has turned to Voidfang Vestments, xur has been selling Voidfang Vestments all the time. RNG is beginning to piss me off so much.
I can't for the life of me even get one from nightfall. I get any other exotic that I don't want.
-
I got it twice, once from a Xur engram and once from Nightfall. It's not that great but I use it cause it looks awesome...