First why would you change the burn on Skolas you have made killing that guy nearly impossible. Treasure keys are such a disappointing way of obtaining loot. I would rather use loot caves shoot non stop for 5 hours rather than search for treasure key for 5 hours then spend another 5 hours trying to kill Skolas for no good loot in return the reef and the trials of Osiris did not live up to the hype the reef has so little options one might ask why add it at all. And the trials you spend ages waiting to get a team then you enter a match of skirmish which I feel is just lazy make a new game mode make it fun to play. It's just poor design. The only bit of the DLC that I liked was the story missions but I feel that should have been available when you buy the game. Bungie fix this DLC make it worth my time and money!