RE: Rebellion Soulbound Reward Set: 5 Epic Duplicates in One Season! 🙁

That could help to sell your doubles at a profit.

That would mean to unlock them... I doubt that has been profitable in many cases. Plus, if I had this intention, I should have unlocked them early, much cheaper. In my case, I have two options, in my opinion: 1. use them in survival mode 2. burn them for Glint