Blue Sky Stream (Korean edition) is a Sword & Shield era (S7R) booster expansion focusing on Dragon-type Pokémon, especially Rayquaza, that pairs with Eevee Heroes to form the basis of the English set Evolving Skies.
Korean versions feature distinctive cardstock with yellow borders and a unique texture, differing from the Japanese, Taiwanese, and Thai editions. The set is valued by collectors for its unique aesthetic, while also offering the chance to pull desirable cards like Rayquaza VMAX and the alternative art Dragonite V, making it a good option for both collectors and competitive players.
