You’ve already allowed us to put them in team storage for a while now, and since the game’s inception (or some point thereof) you put in card battles, in which you lose cards to other players. At this point, it’s obvious that you intend to allow us to move cards between characters and between other players, so can we please just make cards tradeable already? Cards are at a premium now that they don’t drop from quests and that we actually have a reason to level them up. Now that they all have effects, obviously people will want to and do trade them. It’s kind of silly though that the only we to trade them is still through card battles.
The best scenario is when you’re trading one card for another, in this case, both players can play the cards. The player who won is set, they got the card they were trading for and still has their original card. All they have to do now is keep playing the card they wanted to trade away until they lose, hopefully they lose on the first turn and both players walk away with having traded cards and not lost anything.
What happens often though is that card deals aren’t that smooth or straightforward. Most of the time, people are trading cards for talts or other items. First this requries a level of trust, you either give your items away upfront, or you give away a card up front and wait to get paid after. Second, and worst of all, is that the person trying to win the card is stuck using their own cards to win. If you’re lucky, you’ll win on the first go, get the card and not lose any cards. Most of the time, however, you won’t be that lucky, in some cases, you can end up giving the other play 5-10 (if not more) of your own cards just to win their 1 to complete the trade. The sad thing is, even if those 5-10 are “worthless cards” you just lost a good chunk of card exp to level your card to level 10.
My point with this, probably already too long post is, card battle is an unbalanced minigame that I have honestly never seen a single player actively play just for fun, I’ve only seen it ever used to trade cards. You already intended for cards to be tradeable between characters and between players. Just flip the switch and let us trade cards in the trading window please.

