Mulch is a card from the Innistrad set of Magic: The Gathering, classified as an Unknown rarity. It allows players to reveal the top four cards of their library, putting land cards into their hand and the rest into the graveyard, making it useful for graveyard strategies. Currently valued at $0.11, it offers budget-friendly options for collectors and players looking to enhance their decks with synergy around land and graveyard interactions.