The Sun & Moon era marked a transformative period for Pokémon Trading Card Game, introducing new mechanics and expanding the game's competitive landscape. Black Star Promos remained highly sought after during this time, offered as premium rewards and special releases rather than through standard booster products. These cards captured collector interest through distinctive cosmos holo patterns and exclusive artwork, making them memorable additions to collections from this celebrated generation. SM157 Pikachu exemplifies what drew collectors to this promo line—a beloved character rendered with the striking cosmos holo treatment that defined the series. The shimmering pattern across the card creates visual depth absent from standard releases, and Pikachu's iconic status ensures enduring collector demand across all eras of the hobby.