Trading cards are one of the small, fun things that Valve has added onto their Steam service in previous years. Earned by simply playing certain games, these virtual treasures can be collected and traded like regular trading cards.
Now, all of you Street Fighter V players can begin gathering cards as well, as Capcom recently announced that their flagship fighter now supports this functionality. Like all Steam trading cards, half of the set can be collected by playing the game, while the other half must be traded from other players.
Those who collect the whole Street Fighter V set can then craft their cards into a special game badge that is displayed on their Steam profile. Additionally, this badge also gives players special bonus items, including emoticons, profile backgrounds, and even coupons.
Source: Capcom-Unity