Yu-Gi-Oh! · Flames of Destruction
Knightmare Mermaid
French name: Sirène, Chevalier du Cauchemar
Knightmare Mermaid (Flames of Destruction FLOD-EN043) has a market price of US$0.24 to US$0.37 as of Nov 9, 2026.
Price guide
The market price on TCGplayer, in US dollars: a guide, not an offer.
Market price
As of Nov 9, 2026 · The market price is TCGplayer’s, in US dollars. It is a guide, not an offer.
Card details
- Type
- Link Monster
- Level
- 0
- Attribute
- WATER
- Monster type
- Fiend
- Archetype
- Knightmare
- ATK
- 1,000
Card text
1 "Knightmare" monster, except "Knightmare Mermaid" If this card is Link Summoned: You can discard 1 card; Special Summon 1 "Knightmare" monster from your Deck, then if this card was co-linked when this effect was activated, you can draw 1 card. You can only use this effect of "Knightmare Mermaid" once per turn. Monsters on the field lose 1000 ATK/DEF, unless they are co-linked.
All card details
- Link rating
- 1
- Link arrows
- Bottom
About this card
Knightmare Mermaid is card FLOD-EN043 in Flames of Destruction, a Yu-Gi-Oh! set released May 4, 2018. Rarity: Rare. Finishes: Unlimited, 1st Edition. Reference market price on Nov 9, 2026: US$0.37 (Unlimited), US$0.24 (1st Edition). Over the last 30 days, the Unlimited price went down 24.5%. Source: TCGplayer market data via tcgcsv.com, updated daily. A reference price is not an offer.
