# Red Herring Red Herring is a playtest card from Mystery Booster's 2021 supplemental release, existing purely as a nonfoil printing. Collectors view it as a curiosity rather than a serious acquisition target. The card's whimsical name and mechanics reflect the experimental nature of Mystery Booster's design space, where developers tested unconventional ideas. These playtest cards hold niche appeal primarily to completionists and Magic enthusiasts interested in game development history. Red Herring's rarity designation doesn't carry the same weight as cards from standard sets, since Mystery Booster operated under different distribution principles. For most collectors, it remains a peripheral piece rather than a cornerstone of any collection.