I actually just updated it to make a smoother progression in champ while trying to address some of the concerns. The minimum card levels are not really negotiable as people have proven time and time again that if there's any room to exploit the system, they're going to use it. We've had people use low level accounts to essentially flood the pool and poach rewards by only playing against themselves, we've had people trade cards between accounts to take multiple leaderboard spots, we've had people use the market to buy/sell cards to circumvent the cooldown put into place to prevent the card swapping and many other things. Essentially top stakeholders will not let us go backwards and recreate old problems. Hopefully that helps you understand why they are there.