Dredgen Yor used the thorn, the lore states that the traveller created the vex to help terraform the planets but they were corrupted by the darkness and made the planets machines instead. Lord Saladin told Zavala and Shaxx to stand their ground and Shaxx instead lead a charge against the fallen which was the final push that won the battle. Shaxx and Saladin's relationship was strained from then on. Toland is not Osiris, although it is a popular theory that he is Xur. Toland's bond that he gave to Eris that helped her survive has a description that is like "they will think you are one of them, which is good." Or something like that. This helped her survive, and we are unaware of Toland's whereabouts or if he survived. Toland was a warlock who claimed to have been able to communicate with the darkness. TL:DR who reads the tl:dr about lore?