Just a minor thing, but I would really like it if I could switch between the bazaar and my deck with less than 30 cards.
It's a pain to have to go back and forth not being able to buy stuff only because you can't leave your deck with less than 30 cards.
It's mostly a new player thing, after a certain point you can just add fillers, but I think it would be that much more noob friendly if you could do this.