When you win a card, it goes to your inventory and you choose what to do with it. Here are your options.
TL;DR
Any card in your inventory can be sold back to BOXED for its gem value, withdrawn as a physical card, exchanged for a graded slab through the Marketplace, swapped via Exchange for another item of similar value, or displayed in your profile or binders. You can't sell, trade, or gift cards to other users — everything you do with a card is between you and BOXED. Selling back is the quickest way to turn an item back into gems you can spend.
Your options
Sell it back for gems. Any card can be sold back to BOXED for its gem value — this is always available.
Withdraw the physical card to your address. See Withdrawing a physical card.
Exchange it for a graded slab through the Marketplace. See Marketplace: exchanging cards for a graded slab.
Swap it via Exchange for another item of similar value.
Display it in your profile or binders.
What you can't do
You can't sell or trade cards to other users, and you can't gift them. Everything you do with a card is between you and BOXED.
Selling a card back for gems
Selling back returns the card's gem value to your balance — the quickest way to turn an item back into gems you can spend.
Common questions
Can I sell a card to another user?
No — there's no player-to-player selling, trading, or gifting.
How do I turn a card into cash?
Withdraw value as crypto, or withdraw/keep the physical card. See the withdrawal articles.
How do I get gems back from a card?
Sell it back for its gem value, anytime.