yoda8789

The longer the game is up, the more cards will be there. This will lead to a price drop of unwanted cards. To keep its (minimal) worth, a sell/destruction for those cards - with refund - would be nice.
Anyhow, my initial thought was based on the wish to keep my inventory clean and sorted. A feature to sell X Destruction (for lets say 1 bfp each) would be cool!

I'm also in support of this. But I think you should get for the cards instead of  . Even though I can't say why I'd prefer it that way. Just seems more correct to me to give out something one might be able to use even after owning every single card in the game. Also 1 won't make much of a difference in the current state of the game even if you sold 50 cards. But something like e.g. 150-2k gold (for common-ultrarare) do mount up to some nice upgrades.
I wonder if it'll be possible with the client though.
@flergon It most likely won't be able to keep the market 'healthy' though. As soon as enough pieces of a card are destroyed the worth will go up by a couple of making it worthwile to sell again and lowering the prices back to the original level. I fear that the vast pool of unused common & uncommon cards won't change their prices even then but some rares and ultrarares that aren't worth much might rise in price. That's still a good thing imo but one shouldn't have great expectations of what this will be able to do.
The data gained from the destruction of cards should be invaluable to make balancing changes in the future though. So please go ahead devs and make this happen.

Different kind of booster with different costs and types