Knightmare Mermaid
Knightmare Mermaid is a Link Effect Monster in the Knightmare archetype, first released in 2018 in Flames of Destruction. It has 2 printings across 2 sets (Rare, Prismatic Secret Rare). The cheapest copy is FLOD-EN043 Rare at $0.46; the most valuable is MP19-EN025 Prismatic Secret Rare at $0.62. In the TCG it is currently unlimited (3 copies).
Market price · TCGPlayer
Updated Oct 1, 2026
$0.46 – $0.62
2 printings priced
Type
Fiend
Link
0
ATK
1000
1 "Knightmare" monster, except "Knightmare Mermaid" <br>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.
Appears in 2 expansions
Printings (2)
| expansion | Code | Rarity | Price | Buy |
|---|---|---|---|---|
| Flames of Destruction | FLOD-EN043 | Rare | $0.46 | |
| 2019 Gold Sarcophagus Tin Mega Pack | MP19-EN025 | Prismatic Secret Rare | $0.62 |
Knightmare Mermaid: FAQ
How much is Knightmare Mermaid worth?+
Knightmare Mermaid currently sells for $0.46 – $0.62 on TCGPlayer, from $0.46 for FLOD-EN043 up to $0.62 for MP19-EN025. The exact value depends on the printing, rarity, edition and condition — scan the card with YuScan to see the price of your copy.
Which sets was Knightmare Mermaid printed in?+
Knightmare Mermaid appears in 2 sets: Flames of Destruction, 2019 Gold Sarcophagus Tin Mega Pack.
Is Knightmare Mermaid legal in tournaments?+
On the current TCG Forbidden & Limited List, Knightmare Mermaid is unlimited (3 copies).
What is the passcode of Knightmare Mermaid?+
The 8-digit passcode printed on Knightmare Mermaid is 03679218.
Knightmare
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