Card archetypes are categories that define the roles and functions of cards in games, particularly in trading card games like Magic: The Gathering or Yu-Gi-Oh!. Each archetype typically shares a common theme, mechanics, or strategy, allowing players to build decks that synergize effectively. Examples include Aggro, which focuses on fast-paced attacks, and Control, which emphasizes managing the game state. These archetypes help players understand how to construct their decks and develop strategies. By recognizing the strengths and weaknesses of each archetype, players can make informed decisions during gameplay, enhancing their overall experience and competitiveness in the game.