To get your own card deck, you must:

1. Open your profile.
2. Select the button with cards.
3. Select the button on which the cards are drawn and you will see the different deck of playing cards that you can acquire against the corresponding number of diamonds / chips that is written under each deck.

Once you like and buy a deck of cards, you'll see "Owned" above it, which means it's already yours and you can use it in the game. To do this, you must press the "Use" button under the deck you have selected and in each game you enter, it will be displayed. If you have not selected any scaffolds, your cards will look in the way that is generally set for all users.

Keep in mind that the card deck you choose will only be visible to you. If you want everyone at the table to play with it, you must create a game in the Play with friends room. At the bottom of the window you see when you set the game options, you can specify the deck you want to play with.

If you want to see other players decks in the games, you must enable the option "Dealer deck". You can read more about it here.