I think it would be good if I could make Folders for Tradelist, like I can do for decks.

Then I could divide them as "Rares/Promos/Common/Uncommon etc.", you can sort them for rarity or promo/not promo but people looking for distinct items (like a collector only collecting foils, or someone looking for rares) won't get a lot of card traffic while looking people's profiles.

You can add cards in a folder or many folder (Like a rare promo foil Firemane Avenger, you can put it in Foils and also Rares)

There is a filter, but still, I want to put some common/uncommons in my tradelist for new people wants to buy them, but most people don't want to see those cards.