Once you have all six of these emblems you earn the Luna Emblem and can finally take on the Azure Sky Tower, which you must complete over and over and over again, each time adding a few extra floors to the tower (At first it's only 12 floors), until you've built it up to 99 floors (This will take hours upon hours). Then they must enter the Azure Sky Tower to earn an elemental emblem (you get one of four at random), then earn the other three through "Emblem Resonance", a process which involves other players and a link cable who are also taking on this sidequest. To get it you must first beat the game and earn the Dark Emblem, then fully restore the Solar Tree to earn the Sol Emblem.
#DISHONORED 2 MISSION 7 BLACK BONE SHARD TV#
One of them even has a time limit before it self-destructs - if you don't beat all the enemies quickly, you'll be tossed from the dungeon before you can pick it up (FYI, it's the wounded miner dream). You have to find all 50 of them throughout the game, and most of them are permanently missable if you're not careful, especially since there's one in each dungeon and most dungeons are one time visits.