Much like the real world, you get more cards by opening booster packs. However, unlike their physical counterparts which contain ten cards, Pokémon TCG Pocket boosters (like those gained through code cards in Pokémon TCG Live) only contain five. The launch set is called Genetic Apex, with three different booster pack arts, Pikachu, Charizard and Mewtwo. These three types each have some specific cards unique to them: for example, if you want the Pikachu ex card, it’s only available in the Pikachu pack.
If there’s a particular card you’re looking for, make sure you are opening the correct type of pack. The card list for each, as well as their percentage chance of being pulled, can be viewed by tapping the “Offering Rates” Button in the left corner.
Of course, you can’t just open as many packs as you want. You need to make sure you have enough Pack Stamina, which refills automatically on a timer. Every 12 hours, the bar refills, allowing you to open up another pack. For those bad at math, this means you can open two packs a day, receiving only ten new cards a day. Fortunately, the game has some ways to speed up this timer, as well as other methods to get new cards, like the Wonder Pick.
The Wonder Pick is basically a roulette where you can select one random card from a pack that another player has opened. Don’t worry, you aren’t stealing from them, you are just getting a chance to get the same card they pulled. Depending on the rarity of the cards in their booster, it could cost up to three Wonder Stamina, which also refills on a timer. Wonder Pick can be a great way to get a specific card, but given the randomized nature of what you get, it can be frustrating spending three Wonder Stamina trying to get a full-art or EX card, only to get a garbage common one. Still, the option is there, so you might as well use it, especially once you start filling out your collection and need incredibly specific cards to complete it.