Yes, seeing it starve from bad policy hurts. Somehow always a pleonasm. Can there be something like good policy in a market situation? We deal what we do. By the way, I've noticed a challenge option revival. Have not taken a closer look.
I hope it enables individual competition with stakes. Most recently, only Beta Packs could be staked and then the team abandoned the individual challenge option. I hope to find what I wish for when I'm at it to take a look.
!invest_vote
I think you mentioned the Survival mode. In this mode, you can use all of your cards but when it dies in the battle, you can not use it until next season. A died card also can not be used in the ranked battle. That requires you to have a lot of cards in your deck.
So far, this is what I understand from the townhall post.