The Magic: The Gathering Arena is a good platform for beginners of the game especially to the young players to get familiar with the rules and gameplay in an interactive environment. The devs also has been providing free redemption codes for its player users to be able to gain free items such as card cosmetics, and booster packs in-game. The usual method to get more cards and to increase your card pool is to do the daily quests, grind match wins and participate in online tournaments.