I believe the only way to get the Brilliant keys is to buy the premium pass. Awful nice of em to take your money then strip away the product. It occurs to me that they have done every thing possible to drive players to buy premium. Drop the loot rates, replace that with drops you have to buy items to open. Two years ago I could get by on drops till the freaking army of bots overran the server. Instead of working on removing bots, removing the drops seemed to be a better idea. I enjoy the game, but I am a poor fella, so guess I will stick with crafting.