King of the Swamp
Effect Monster
King of the Swamp is a Effect Monster (WATER/Aqua, Level 3) with 500 ATK / 1100 DEF. First printed in Ancient Sanctuary (2004).
- Type
- Effect Monster
- Attribute
- WATER
- Monster type
- Aqua
- Level
- 3
- ATK / DEF
- 500 / 1100
- Banlist
- Unlimited in the TCG, OCG, and Master Duel
- TCG release
- 2004-06-01
- Printings
- 10
Card text
This card in your hand, field, or GY can be used as a substitute for any 1 Fusion Material whose name is mentioned on the Fusion Monster Card, but the other materials must be correct. You can discard this card to the GY; add 1 "Polymerization" from your Deck to your hand.
Approximate value
≈$0.15
A rough figure from recent listings (updated 2026-06-09), not a market value or official price. It varies a lot with printing, condition, edition, rarity, and grading. Check current listings below before buying or selling.
Find a copy
A high price usually belongs to one short-printed version and can reflect a single seller's asking price. Sold listings show what copies actually went for.
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Printings & rarities
All printings →| Set | Set code | Rarity | Release | Price* |
|---|---|---|---|---|
| Ancient Sanctuary | AST-082 | Rare | 2004-06-01 | $14.49 |
| Hobby League 1 participation cards C | HL1-EN006 | Super Rare | 2005-01-01 | $136.61 |
| Dark Revelation Volume 2 | DR2-EN195 | Common | 2005-10-20 | $0.15 |
| Duel Terminal 4 | DT04-EN055 | Duel Terminal Normal Parallel Rare | 2011-01-25 | $0.15 |
| Legendary Collection 3: Yugi's World Mega Pack | LCYW-EN256 | Common | 2012-09-29 | $15.20 |
| Legendary Decks II | LDK2-ENK17 | Common | 2016-10-06 | $14.27 |
| Fusion Enforcers | FUEN-EN040 | Super Rare | 2017-02-23 | $15.59 |
| OTS Tournament Pack 20 | OP20-EN014 | Common | 2022-10-20 | $0.15 |
| Justice Hunters | JUSH-EN046 | Collector's Rare | 2025-07-31 | $0.15 |
| Justice Hunters | JUSH-EN046 | Rare | 2025-07-31 | $0.15 |
*Approximate, from recent marketplace listings, not market values.
King of the Swamp in other languages
| Japanese | 沼地の魔神王 |
| Korean | 늪지의 마신왕 |
| Chinese | 沼地魔神王 |
| German | König des Sumpfes |
| French | Roi des Marais |
| Italian | Re delle Paludi |
| Spanish | Rey del Pantano |
| Portuguese | Rei do Pântano |