decklist does not seem to recognize Attraction and Sticker cards, and therefore cannot add them to a competitive event deck registration sheet in a separate section from Main Deck/Sideboard. They are just added to the Main Deck.

Attractions: https://scryfall.com/search?as=grid&order=name&q=type%3Aattraction
Stickers: https://scryfall.com/sets/sunf?as=grid&order=set