Thus vault is a terrible thing. I've been playing this game since November and I have only once in 5 months had enough diamonds to open this damn thing and that was the last diamond blitz tourny. But if everyone else is just paying for the highest level units for their leagues it becomes nearly impossible to ever get the "Grande prize" now that tournaments are 500 diamonds to re enter I never get to re enter and do better. Also to penalize regular users by making the regular cloning chamber less effective than the purchased ones is *. You're trying to corner normal users and force them to pay for a free to play game in order to stay competitive. Yet with all these new ways to spend diamonds the only way to receive them is to hope you don't get steamrolled in tournaments and wait for your blue crate to get a measly 4-7 diamonds. So maybe in another 4 months I can open the vault .... oh wait or maybe re enter a tournament ... or just delete this game because by that point everything will cost more. Next thing you know there will be units that are godlike that you pay to unlock that make the game unfair.....