over 3 years ago - The Pokémon GO team - Direct link

Trainers,

This July, a card featuring Professor Willow will debut as part of a collaboration between Pokémon GO and the Pokémon Trading Card Game. The new artwork created exclusively for this card has now been released, so now’s your chance to check it out!

Professor Willow appears on the card Professor’s Research, a current must-have for any deck when battling in the Pokémon Trading Card Game. Its powerful effect can instantly give you an advantage during a match.

This card will also have a special promotional code that isn't printed on regular Pokémon TCG cards. Using this code will allow you to partake in Special Research in Pokémon GO, where you’ll able to encounter the Mythical Pokémon Meltan and earn items that can be useful on your journey!

The Professor Willow card will be made available in regions where the Pokémon TCG is sold. For more details, please check the official Pokémon TCG website.

Please note that this information is subject to change, and other ways of obtaining the card may be added at a future date.

https://tcg.pokemon.com/

Please be aware of your surroundings and follow guidelines from local health authorities when playing Pokémon GO. Upcoming events are subject to change. Be sure to follow us on social media, opt in to receiving push notifications, and subscribe to our emails to stay updated. For the latest on in-game events and feature updates, be sure to check this help center article.

—The Pokémon GO team