A CCG, or Collectible Card Game, is a type of card game where players build their own decks using cards that they collect. Each card typically represents a character, spell, or item, and players use these cards to compete against each other. The strategy involves not only the cards themselves but also how players choose to combine them to create effective gameplay. In a CCG, players often trade or purchase booster packs to expand their collection. Popular examples of CCGs include Magic: The Gathering and Yu-Gi-Oh!. These games can be played casually or competitively, with tournaments often held to determine the best players.