Flairs

Head to My Cards section of the game.

Select a card.

Select the "Obtain Flair" button.

If you have more than 2 copies of a card, you can exchange duplicate cards and Shinedust to obtain Flairs.

Cards with ⭐ rarities or greater only has Battle Flair available, and in addition you can also exchange extra copies for Special Shop Tickets.

For up to ♦♦♦♦ rarities of cards, you must first unlock "Sparkes Flair: Gold (Cosmetic)" to see the the rest, which depend on the type of the card (e.g. Grass Energy Flair for a1-1-bulbasaur).