My gf bought three engrams and got two of the chest pieces Xur was selling(titan lupi and voidfang). She has been wanting Heart of Praxic Fire since the first time she saw it. I have wanted the Voidfang Vestments since I saw it. So I tried my luck and got Heart of Praxic Fire on my first try (she was pissed). Clicked again and got Starfire Protocol. So I ended up buying Voidfang Vestments for coins. Warlocks forever!