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  6. Mermail Shadow Squad (Quarter Century Secret Rare)

Yu-Gi-Oh! · Rage of the Abyss · #ROTA-EN018 · Quarter Century Secret Rare

Mermail Shadow Squad (Quarter Century Secret Rare)

Yu-Gi-Oh! card price for Mermail Shadow Squad (Quarter Century Secret Rare): $49.79 market, though the cheapest copy on sale asks $53.99, 1st Edition printing, updated Oct 19, 2026. Full price history since Oct 6, 2024 below.

Market price · 1st Edition · Oct 19, 2026
$49.79
−2.2% this week · −4.1% in 30 days
Buy on eBay →
1 day−0.2%
7 days−2.2%
30 days−4.1%
90 days−15.7%
1 year−18.0%
All time−14.1%

Sellers right now

$53.99lowest listing$541.70highest
Market price$49.79
Mid listing$81.00
Direct$149.97
30-day avg$51.11

Market price is what a near-mint copy actually sold for. The cheapest listing is what a seller asks today — on thin markets the two differ a lot.

Where to buy

TCGplayer$49.79

One year

$43.2252-week low$59.8152-week high
In the range40%
All-time low$42.79
All-time high$90.49
First priceOct 6, 2024
1st Edition · market price
$40.38$58.66$76.94$95.22
$49.79
Oct 2024Jun 2025Feb 2026Oct 2026
TCGplayer market price · via tcgcsvtcgrate.com

Price story

Mermail Shadow Squad (Quarter Century Secret Rare) was released in October 2024. Launch-week prices are left out here: before supply arrives they are mostly guesses. Across the past year it went −18.0%, with a low of $43.22 and a high of $59.81; today it sits in the middle of that range. The cheapest listing right now is $53.99, and the 30-day average market price is $51.11.

Printings

PrintingMarketLowHigh7d
1st Edition$49.79$53.99$541.70−2.2%

The card in play

ATK0
DEF1900
Card type
Effect Monster
Attribute
WATER
Monster type
Sea Serpent
Card text

(This card is always treated as an "Atlantean" card.)
You can discard 1 card to the GY; WATER monsters you currently control become Level 7 until the end of this turn. If this card is sent to the GY to activate a WATER monster's effect: Special Summon 1 Level 4 or lower "Atlantean" or "Mermail" monster from your Deck, except "Mermail Shadow Squad", also you cannot Special Summon from the Extra Deck for the rest of this turn, except WATER monsters. You can only use each effect of "Mermail Shadow Squad" once per turn.

Other printings of Mermail Shadow Squad

2 more · $0.88 – $49.79
All printings
Mermail Shadow Squad (ROTA-EN018), Rage of the Abyss — Yu-Gi-Oh! card price +7.1% 7d Mermail Shadow Squad Rage of the Abyss · #ROTA-EN018 $1.21 Mermail Shadow Squad (MP25-EN101), 2025 Mega-Pack — Yu-Gi-Oh! card price +29.4% 7d Mermail Shadow Squad 2025 Mega-Pack · #MP25-EN101 $0.88

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