Price updates are limited. Some displayed estimates may be older. See each card’s price history for context.

Yu-Gi-Oh! · Common / Short PrintLive pricing
Mermaid Knight
Stable0.0%Structure Deck: Fury from the Deep, 2005 · #SD4-EN011
Mermaid Knight's Near Mint price is unchanged over the past 30 days.
Fresh· Updated Nov 7, 2026
Card Details
TypeMonster — Aqua/Effect
Mana Cost3U
P/T1500/700
ArtistKazuki Takahashi
RaceAqua
ArchetypeUmi
AttributeWATER
Frame Typeeffect
Human Readable TypeEffect Monster
Card TextAs long as "Umi" remains face-up on the field, this card can attack twice during the same Battle Phase.
inkwell Fair Value™?· NM
$0.49
single source
——
Condition?
Confidencemedium
Prices as ofNov 7
Normal—
Cheapest printing—
Why This Price
inkwell Estimate
Fair Value$0.49
Movement
7D Change+0.0% (+$0.00)
30D Change+0.0% (+$0.00)
Freshness
Prices as ofNov 7
Update cadenceDaily
Inkwell Fair Value$0.49
Buy this card Affiliate link — inkwell may earn a commission. Learn more
More from Structure Deck: Fury from the Deep
See all cards →- How much is Mermaid Knight worth?
- The current Near Mint price for Mermaid Knight from Structure Deck: Fury from the Deep (Yu-Gi-Oh!) is $0.49. The price has been stable over the past 7 days.
- What set is Mermaid Knight from?
- Mermaid Knight is from the Structure Deck: Fury from the Deep set, released May 2005. It is a Common / Short Print in Yu-Gi-Oh!.
- What rarity is Mermaid Knight?
- Mermaid Knight is a Common / Short Print card from Structure Deck: Fury from the Deep in Yu-Gi-Oh!.
- How many printings of Mermaid Knight exist?
- Mermaid Knight has 3 printings across different Yu-Gi-Oh! sets. The cheapest printing is $0.49 from Structure Deck: Fury from the Deep.




