Besides my personal complain due to poor financial status, I'd mention somethings in common. Even some rich people can level all cards to max level, he may fail to find enough cards in in-game market expecially those out-of-print cards. This is not friendly to new player. And some cards are not suitable to max level. Like Gravebrand Warlock , this max level has some negative effect and many people keep it at level 7. But they can't use it in champ bracket.
This proposal will force to upgrads all cards to max level which i oppose. I hope to keep max level limitation but remove lower level limitation. Let the champ braket can use level 1-10(common), gold can use level 1-8(common).