# Soulmates Soulmates represents an interesting artifact of Magic's design process through Mystery Booster's playtest card series. As a rare from the 2021 playtest set, it captures experimental mechanics that never made it to standard releases, making it inherently appealing to collectors interested in developmental history. Collectors typically view playtest cards as curiosities rather than tournament staples, valuing them for their unique position between official and unofficial products. The nonfoil-only status limits variant options, which some collectors see as either a drawback or a purity marker depending on their collecting philosophy. These cards hold particular interest for those tracking Magic's design evolution and completionists pursuing comprehensive set collections.