Guardian combines marketplace prices, recent sold listings, graded-card estimates, and cross-market checks into one daily card value. We separate raw and graded prices where data is available, ignore obvious outliers, and update card pages as new market data arrives.
The "Swamp [Foil]" card from the Magic: The Gathering Onslaught set features a unique foil treatment, enhancing its visual appeal for collectors. Classified as an Unknown rarity card (#339), it plays a crucial role in many decks by providing black mana. Currently valued at $3.45, its market presence reflects both its utility in gameplay and its desirability among collectors looking for distinctive land cards.
Track Swamp [Foil] price trends, view grading values, and get market alerts on Guardian TCG. Updated daily with data from multiple sources.
How much is Swamp [Foil] from Magic Onslaught worth?
Swamp [Foil] from Magic Onslaught is currently worth $3.45 in 2026. Prices are updated daily from multiple sources.
How rare is Swamp [Foil] in Magic Onslaught?
Swamp [Foil] is a Unknown card from the Magic Onslaught set in Magic: The Gathering.
Is Swamp [Foil] going up in value?
Swamp [Foil] has decreased 0.0% in the last 7 days and decreased 0.0% in 30 days. Current Guardian Estimate: $3.45.
Where can I buy Swamp [Foil]?
You can compare prices and buy Swamp [Foil] on TCGPlayer, eBay, and CardMarket. Guardian TCG tracks live prices from all three sources — current Guardian Estimate: $3.45.
How much is Swamp [Foil] from Magic Onslaught worth?
Swamp [Foil] from Magic Onslaught is currently worth $3.45 in 2026. Prices are updated daily from multiple sources.
How rare is Swamp [Foil] in Magic Onslaught?
Swamp [Foil] is a Unknown card from the Magic Onslaught set in Magic: The Gathering.
Is Swamp [Foil] going up in value?
Swamp [Foil] has decreased 0.0% in the last 7 days and decreased 0.0% in 30 days. Current Guardian Estimate: $3.45.
Where can I buy Swamp [Foil]?
You can compare prices and buy Swamp [Foil] on TCGPlayer, eBay, and CardMarket. Guardian TCG tracks live prices from all three sources — current Guardian Estimate: $3.45.