Board Thread:Game Discussions/@comment-24149689-20131227163448/@comment-24003266-20131227185135

You can also get Evil Jewels in Enchanted Chests. I save all my Enchanted Keys unless I need some basic or uncommon armor or other mats, or to get some extra gems/fusion stones in a pinch; otherwise, I save them to not clog my armor inventory w/ lesser sets.