Each Chilling Reign booster box contains 36 booster packs. (Each pack contains 10 random cards) Chilling Reign takes Pokémon TCG players to The Crown Tundra, a frigid land once ruled by the benevolent High King Pokémon Calyrex. From competitive centerpieces like Ice Rider Calyrex VMAX to collectible treasures like alternate-art Blaziken VMAX, there are so many cards to discover.