Heavy Mattock is an equipment card from Magic: The Gathering's Dark Ascension set, listed with an Unknown rarity and a current market value of $0.04. It functions as a simple, low-cost artifact that enhances a creature's combat potential, making it of interest primarily for budget decks and bulk trade lots. Collectors encountering this card should view it as a common bulk staple rather than a high-value piece, useful for completing set runs or casual play.