ATTACK: 1000
ATTRIBUTE: WATER
CARD TYPE: Link/Effect Monster
LINKARROWS: Bottom
LINKRATING: 1
DESCRIPTION: 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.
MONSTERTYPE: Fiend

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PRICE FAQ

What is Knightmare Mermaid (2019 Gold Sarcophagus Tin Mega Pack) worth today?

Knightmare Mermaid [1st Edition] has a TCGplayer market price of $0.72 as of 2026-09-17. Across 2 tracked variants, latest prices range from $0.66 to $0.72.

What is the all-time high price for Knightmare Mermaid?

In TickerMint's daily data (since September 2026), the all-time high market price for Knightmare Mermaid [1st Edition] is $0.72 (2026-09-17) and the all-time low is $0.70 (2026-09-16).

What would a seller actually net for Knightmare Mermaid?

The TickerMint Estimate for Knightmare Mermaid is $0.72. It is a fee-adjusted fair value blending TCGplayer and eBay data to estimate what a seller nets after marketplace fees.

how these numbers are computed →

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