A Joker is a unique card that can be exchanged for any missing card in any set. Like other cards, Jokers can be obtained by participating in events or for other achievements in the game.

If you have a Joker card, it is shown in the icon in the top right corner of the Collection screen.

How to exchange a Joker?
- Open the set window.
- The missing cards in the set will appear as Joker cards.
- In the window that opens, choose the card you need and confirm that you want to exchange a Joker for this card.
- After confirmation, the Joker will be spent and you will receive the chosen card.