Card packs are collections of cards that often feature a specific theme or game. They can include trading cards, collectible cards, or game cards, and are commonly used in various games like Magic: The Gathering or Pokémon. Each pack typically contains a random assortment of cards, allowing players to build their decks or collections. These packs are sold in stores or online and can vary in size and price. Some card packs may contain rare or special cards, making them more desirable for collectors. Players often purchase multiple packs to enhance their gameplay experience or to complete their collections.