Cosmic Eclipse represents the final major release of the Sword & Shield era's opening year, arriving in 2019 as collectors eagerly pursued modern Pokemon cards following the hobby's explosive resurgence. The set balanced popular characters with competitive playables, establishing itself as a cornerstone release for players and collectors building their contemporary collections during this pivotal period of renewed interest. Koffing #243 captures the toxic Pokemon in its classic poisonous form, a familiar face to longtime fans. This card appeals to collectors pursuing complete set builds and those drawn to the Koffing line's nostalgic charm, making it a steady presence in Cosmic Eclipse collections.