SO I thought that it was just a coincidence, but I don't think that xur sells any new spirits you have not yet unlocked in dual destiny. Why has bungie done this I am not sure at all. I'm missing Liars, Ophidians and a couple more and have yet to get them from XUR so its either bungie has severely weighted some spirits or need to correct the issue of not getting the class items spirits from XUR. As we all know Dual destiny is not worth the time of 30 minutes for a random rolled item.