Card advantage (often abbreviated CA) is a term used in collectible card game strategy to describe the state of one player having access to more cards than another player, usually by drawing more cards through in-game effects to increase the size of their hand. Although it applies to several collectible card games, the concept was first described early in the evolution of Magic: The Gathering strategy, where many early decks relied on a player drawing more cards than their opponent, and then using this advantage to play more cards and advance their position faster than their opponent.