Swamp Onslaught #340 (Foil)
Swamp is a Common Magic: The Gathering card from Onslaught (#340), illustrated by Doug Chaffee. Its current blended market value is $7.33 ungraded. Prices update from real market data.
We don't have a graded price for this card yet — there aren't enough verified graded sales to publish one we'd trust. A grade only appears here once enough real sold results back it. See the raw (ungraded) estimate above in the meantime.
What this price is based on
Medium confidence21 sales in 90 days, but prices vary widely.
Recent Raw sales
- Aug 3, 2026eBay — 2001 Magic: The Gathering MTG Swamp Foil Basic Odyssey 340/350 +Free Gift$3.00
- Aug 1, 2026eBay — Swamp (#340) FOIL [Odyssey] Magic MTG Cards LPLP$5.00
- Jul 27, 2026eBay — MTG FOIL Swamp- DAMAGED -Odyssey Magic the Gathering Card # 340DM$3.00
- Jul 26, 2026eBay — Swamp #340 FOIL Japanese x1 Onslaught mtg SP/MPMP$10.00
- Jul 18, 2026eBay — Mercadian Masques MTG FOIL Swamp (#340) Magic$2.49
- Jul 13, 2026eBay — Swamp (#340) - Foil 8th Edition MP MTGMP$1.72
- Jul 9, 2026eBay — MTG - Swamp (340) - Invasion - Foil - NM - Free Shipping!NM$4.49
- Jul 9, 2026eBay — [1x] Swamp (340) - Foil Near Mint, English Invasion MTG MagicNM$3.41
From 22 completed sales recorded between May 15, 2026 and Aug 3, 2026. Sold prices only — asking prices are never counted.
Grade it or not
Not enough graded evidence yet — 0 graded sales recorded.
✨ Is it worth it?
An AI market read of this card — value, momentum, grading economics, liquidity. It lays out the data; you decide.
Price history · raw near-mint
Card details
- Set
- Onslaught
- Number
- #340
- Rarity
- Common
- Illustrator
- Doug Chaffee
More from Onslaught
Where to buy & check prices
Frequently asked questions
How much is Swamp worth?
Swamp (Onslaught #340) is worth around $7.33 ungraded, based on live Magic: The Gathering market data.
Where can I buy Swamp?
You can buy Swamp on TCGplayer, Cardmarket and eBay — see the live listings on this page. Always compare against the blended market value first.
What rarity is Swamp?
Swamp is a Common Magic: The Gathering card from the Onslaught set, illustrated by Doug Chaffee.
Cite & embed this card
Free to use with attribution to CardTrack.
Swamp (Onslaught #340) — Magic: The Gathering market value $7.33. Source: CardTrack, https://cardtrack.com/magic/card/onslaught/swamp-340<iframe src="https://cardtrack.com/embed/card?id=ONS-340" width="100%" height="160" style="border:0;max-width:460px" title="Swamp price — CardTrack" loading="lazy"></iframe>
<p style="font:12px system-ui">Source: <a href="https://cardtrack.com">CardTrack</a></p>