If people can run once and get them and quit doing raids it kills the community and other have ran 20 to 60 times and not get them is unfair, Life is already unfair it's not making sense to play a game that is also unfair. increase the amount of chest that can hold one K or after some ones 20th run drop a gold key for it, or a quest for it also the same for CoS and SoTp!!!!! Other than that im done playing this game and not getting back into it for any DLC!!!! Because it's going to be the same unfair stuff.