Hissing Miasma [Foil] is a card from the Magic: The Gathering Guildpact set, classified as an Unknown rarity. It features a unique ability that can impact gameplay by introducing a strategic layer to deck-building. Currently valued at $4.80, it appeals to collectors seeking to enhance their sets or utilize its effects in gameplay. Its foil version adds a visual element that can be attractive to certain players and collectors alike.