A Pokémon TCG Chilling Reign booster pack includes 10 Pokémon cards, featuring a mix of rarities, with the potential for rare and ultra-rare finds. It also contains a code card for the Pokémon TCG Online game. The set highlights legendary Pokémon from frozen lands, such as Ice Rider Calyrex, Shadow Rider Calyrex, and Galarian versions of Articuno, Zapdos, and Moltres.