A new update for Marvel Snap is live now, which lets you purchase specific cards that may be missing from your collection. The update, which was detailed last week, is aimed at resolving the issue of card acquisition feeling too random once you get past a certain collection level. As part of the update, you'll also get a login bonus of Tokens, the new currency used for card purchases.
After downloading the update, a new Token Shop appears below the Daily Offer in the store page. That Token Shop displays only one card at a time, and it rotates every eight hours on the same schedule as your Daily Mission refills. If you see a card you want, you can purchase it with Tokens, or pin it, which will hold it in place until you save up enough to buy it.