Tradera, Sweden’s largest marketplace for second-hand and pre-owned items, is hosting a unique so-called box break in connection with SweCard, the country’s largest trading card convention.

36 unique card packs, where a single card can be worth hundreds of thousands of kronor, will be auctioned off on Tradera and then opened live at the convention.

On May 17, Tradera will therefore hold an exclusive Pokémon box break at SweCard 2025 in Huskvarna, Sweden’s largest trading card convention. On Saturday, a very rare and unopened Pokémon Booster Box, valued at 150,000 SEK, will be opened right before the eyes of thousands of devoted collectors. The box contains 36 separate packs, each of which will be auctioned off on Tradera between April 17 and May 11, before the grand box opening.

The boxes to be opened may contain cards potentially worth over SEK 300,000 each. The auctions for each pack start on Tradera on April 17 and end just under a week before the convention, where the winning bidders can watch their cards being opened live.