Hisuian Typhlosion will be a GameStop store promotion with an Astral Radiance stamp.
From what we've seen, this promo appears to have regular holo treatment this time.
You must spend $15 or more on any Pokémon TCG products at GameStop stores in the United States and Canada. This is an in-store and online promotion. If you are going to a physical GameStop store, it is recommended that you check to see if these promo cards are available.
This promotion starts on May 27, 2021 (Astral Radiance release day), of course while supplies last. If this promotion is extended to other countries, we will update this article.
Update: On May 27, this promotion will also be available at Gamestop Italy. You must spend at least €20 on Pokémon TCG products.
Update: Promotion now confirmed for Kaufhaus Stolz stores in Germany. You must spend at least €10 on Pokémon TCG products.
Update 18-06-2022: Game Mania Netherlands / Belgium has confirmed this promotion too now. You must spend at least €20 in-store on Pokémon TCG products. It also comes with the set logo stamped on the promo (confirmed).
Update 20-06-2022: EB Games Australia / New Zealand has confirmed this promotion too now. You must spend at least $20 in-store on Pokémon TCG products.