Mermaid Knight
Yu-Gi-Oh! · Dark Revelation Volume 2 · Rare · DR2-EN137
Released 2005-10-20
$4.45
30-day forecast: $4.46
Live Yu-Gi-Oh! price tracking, buyout detection, and price predictions for Mermaid Knight on TCG Collector Tools.
Card Text
Effect Monster · Aqua · WATER · Level 4 · ATK 1500 · DEF 700 · Umi archetype
While "Umi" is face-up on the field, this card can attack twice during the same Battle Phase.
Prices Across Marketplaces
Price Forecast
| Horizon | Forecast | vs Today |
|---|---|---|
| 7 days (stable) | $4.46 | +0.2% |
| 30 days (stable) | $4.46 | +0.2% |
| 90 days | $4.52 | +1.6% |
| 180 days | $4.52 | +1.6% |
| 1 year | $4.52 | +1.6% |
Confidence 56% · Calibrated 30-day range $3.79–$5.13 · vintage card · veryLow volatility
Our Forecast Track Record
What we predicted for this card, and what actually happened. We publish misses as well as hits. Anchored 2026-04-21 · at $6.00 · 98 days ago.
| Horizon | We predicted | Actual | Error |
|---|---|---|---|
| Day 7 | $6.95 | $3.69 | -46.9% |
| Day 30 | $6.36 | $4.41 | -30.7% |
| Day 90 | $5.35 | $5.89 | +10.1% |
Signal Analysis
Mixed signals. Monitor for clearer direction.
Printings (3)
| Set | Code | Rarity | Price |
|---|---|---|---|
| Ancient Sanctuary | AST-025 | Common | $1.27 |
| Dark Revelation Volume 2 | DR2-EN137 | Rare | — |
| Structure Deck: Fury from the Deep | SD4-EN011 | Common | $1.54 |
Recent Price History
Frequently Asked Questions
How much is Mermaid Knight worth?
Mermaid Knight is currently $4.45 on TCGplayer for the Dark Revelation Volume 2 printing. Prices update daily from live marketplace data.
Is Mermaid Knight going up or down in price?
Our 30-day forecast for Mermaid Knight is $4.46, with a stable trend at 56% confidence.
How many times has Mermaid Knight been printed?
Mermaid Knight has 3 known printings, including Ancient Sanctuary, Dark Revelation Volume 2, Structure Deck: Fury from the Deep.