The 1987 Leaf Donruss Diamond Kings set represents one of the era's most ambitious card releases, featuring specially commissioned artwork by renowned sports illustrators. These oversized cards showcased bold, artistic renderings of baseball's stars, marking a shift toward premium collectibles during the late 1980s trading card boom. The set became iconic for its visual appeal and helped establish Donruss as a major player in the hobby beyond their standard base sets. Wally Joyner was a rising star with the California Angels during this period, making him a natural subject for inclusion in Diamond Kings. Collectors appreciate this card for both Joyner's significance in baseball history and the distinctive artistic treatment that defined the set. The beautiful illustration captures the player during an important moment in his career, making it a memorable piece of 1980s card art.