Board Thread:Game Discussions/@comment-72.79.44.172-20170403004130/@comment-4199297-20170403082710

And heroic mode now awards a "season zero" Shadowforged armor. If you have OK armors and good friends, it should be possible to run locations 1-6 within the 7 days. Location 6 (and maybe 5) will mostly need 2 good friends and 1 rest or revive per run though. So that way you'll get an armor that was top of the line about 9(?) seasons/months ago. You'll probably run into the problem that to level the SF from level 99 to 105 requires silver coins that are way too rare in the game (saving up for the next silver coin chest myself). Just like you can gamble on DF+DF->chance of better DF fusion, you can also gamble on SF+SF->chance of better SF fusion, where results up to season 5 are possible.

And yes, chests are mostly junk. I don't do top runs myself (too much time/effort), so am stuck with chests. 52 chests for 799 gems got me a "lucky" result of 1x season 7 SF, 3+1 SF materials (which I'll probably never be able to use, since they keep switching those in the chests/milestones to the newer ones, so it's impossible for me to get 10 of them) and trash from the other 47 chests.