All Pokémon TCG Pocket players will receive the Pokédex promo card if they login and claim the card from the mail during the distribution period to celebrate the game achieving 40 billion cards acquired.

Celebration for Achieving 40,000,000,000 Cards Acquired in Total by Players Around the World

To celebrate achieving 40 Billion cards acquired in total by players around the world, we are giving you a promo card!

Distribution Period: February 20th, 2025 at 01:00 to March 30th, 2025 at 00:59
Distribution Item: Pokédex

Sources: https://x.com/PokemonTCGP_JP/status/1881227664414966152 and https://x.com/PokemonTCGP/status/1881452379029029111