Yu-Gi-Oh! · Duel Terminal 4

King of the Swamp

French name: Roi des Marais

DT04-EN055Duel Terminal Normal Parallel Rare

King of the Swamp (Duel Terminal 4 DT04-EN055) has a market price of US$8.95 as of Nov 8, 2026.

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Price guide

The market price on TCGplayer, in US dollars: a guide, not an offer.

Market price

LimitedUS$8.95Low US$4.50

As of Nov 8, 2026 · The market price is TCGplayer’s, in US dollars. It is a guide, not an offer.

Card details

Type: Effect Monster
Level: 3
Attribute: WATER
Monster type: Aqua
ATK: 500
DEF: 1,100

Card text

You can substitute this card for any 1 Fusion Material Monster. When you do this, the other Fusion Material Monster(s) must be the correct one(s). Discard this card from your hand to the Graveyard to add a Polymerization from your Deck to your hand. The Deck is then shuffled.

About this card

King of the Swamp is card DT04-EN055 in Duel Terminal 4, a Yu-Gi-Oh! set released Jan 25, 2011. Rarity: Duel Terminal Normal Parallel Rare. Finishes: Limited. Reference market price on Nov 8, 2026: US$8.95. The Limited price did not change over the last 30 days. Source: TCGplayer market data via tcgcsv.com, updated daily. A reference price is not an offer.