Microcosm is the first of its kind, an Exotic Heavy Trace Rifle that certainly has the potential to be a meta game-changer, especially in PvE content with the right builds. As part of Destiny 2s expansion, The Final Shape, players can acquire Microcosm and experience its power for themselves, but first, they are going to have to battle it out against some challenging PvE quests post-The Final Shape.