Sun & Moon Black Star Promos represent a significant chapter in modern Pokémon collecting, distributed through special tournament and product tie-ins during the mid-2010s. This era marked a transitional period for the TCG, bridging early competitive formats with contemporary play styles. Black Star Promos remain sought-after milestones for set builders and fans of the GX mechanic, which defined gameplay during these years. Jolteon GX captures one of Pokémon's most beloved electric-type evolutions in dynamic artwork. Collectors appreciate GX cards from this period for their competitive relevance and visual appeal, and Jolteon's speed-focused design resonates with longtime fans of the franchise. This promo remains a notable pull for those building complete Sun & Moon collections.