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This is a promotional Pokémon TCG metal tin released for the Steam Siege era featuring Marshadow, typically branded as the Mysterious Powers Tin. The tin usually contains one or more collectible foil promo cards featuring Marshadow, several booster packs from the associated set or nearby sets, and sometimes a coin or card sleeves; it is marketed as a collectible and starter accessory for players and collectors.
Catalog pricing data as of 24 Apr 2026, 17:33