For people that know the thorn lore comes, the rose. To make the rose you need pure light from the traveler. To get pure light you need an arc solar and void hand cannon, 1000 motes of light and a shard of the traveler( that drops rarely in a raid) once you fuse these together and get the pure light, you can use it to upgrade thorn to the rose. The rose: exotic hand cannon (solar) Description: it doesn't wield its jagged no more, it now wield the beauty Exotic perk: three bullets in the magazine explode on impact and create a solar grenade that attaches to enemies and lasts for 3 seconds