Wildcard is an online collectible card game that combines strategy and luck. Players create decks of cards representing characters, weapons, and other items, then face off against other players in real-time matches. The game features a variety of game modes and allows players to trade cards with one another. The objective of the game is to use strategy and skill to defeat opponents and collect valuable cards. The game is free-to-play, but players have the option of purchasing card packs or individual cards to enhance their collection.