Cards are mastered by gaining experience for those cards. Winning [[Portal:Story|Story Mode]] and [[Portal:Events|Event]] battles give the cards in your deck experience, or XP; usually 20 points per game, although different events, or whether a node has been played previously, can affect this base amount. Higher rarity cards take more XP to master, but award more Mastery points. Since January 2019 (version 3.2), [[XP]] gained in cards is also gained by the player, and counts toward the player's Level.