Yu-Gi-Oh! · Speed Duel: Battle City Finals

King of the Swamp (PSR)

French name: Roi des Marais (PSR)

SBC2-ENI23Prismatic Secret Rare

King of the Swamp (PSR) (Speed Duel: Battle City Finals SBC2-ENI23) has a market price of US$4.00 as of Nov 10, 2026.

Sell this card

Price guide

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

Market price

1st EditionUS$4.00Low US$3.00

As of Nov 10, 2026 · The market price is TCGplayer’s, in US dollars. It is a guide, not an offer.

Card details

Type: Effect Monster
Attribute: WATER
Monster type: Aqua
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.

About this card

King of the Swamp (PSR) is card SBC2-ENI23 in Speed Duel: Battle City Finals, a Yu-Gi-Oh! set released Dec 13, 2024. Rarity: Prismatic Secret Rare. Finishes: 1st Edition. Reference market price on Nov 10, 2026: US$4.00. Over the last 30 days, the 1st Edition price went down 4.8%. Source: TCGplayer market data via tcgcsv.com, updated daily. A reference price is not an offer.