King of the Swamp
- Attribute
- WATER
- Type
- Aqua
- Level
- 3
- ATK
- 500
- DEF
- 1100
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.
Printings
| Set | Code | Rarity | Released |
|---|---|---|---|
| Ancient Sanctuary | AST-082 | Rare | May 1, 2004 |
| Dark Revelation Volume 2 | DR2-EN195 | Common | October 1, 2005 |
| Legendary Collection 3: Yugi's World Mega Pack | LCYW-EN256 | Common | September 27, 2012 |
| Legendary Decks II | LDK2-ENK17 | Common | October 6, 2016 |
| Fusion Enforcers | FUEN-EN040 | Super Rare | February 23, 2017 |
| OTS Tournament Pack 20 | OP20-EN014 | Common | October 20, 2022 |
| Speed Duel: Battle City Finals | SBC2-ENI23 | Prismatic Secret Rare | December 13, 2024 |
| Speed Duel: Battle City Finals | SBC2-ENI23 | Common | December 13, 2024 |
| Justice Hunters | JUSH-EN046 | Rare | July 31, 2025 |
| Justice Hunters | JUSH-EN046 | Collector's Rare | July 31, 2025 |
| Duel Terminal 4 | DT04-EN055 | Duel Terminal Normal Parallel Rare | — |
| Hobby League 1 participation cards C | HL1-EN006 | Super Rare | — |
| Hobby League participation cards | HL1-EN006 | Super Rare | — |