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Sea Monster of Theseus
Yu-Gi-Oh · Secret Rare

Sea Monster of Theseus

$11.87
-$1.20-9.2% · 30D
Live TCGplayer market price
Confidence
62/100
Reliable
7-Day Change
-3.1%
vs last week
Market Trend
Falling
TCGplayer price
Buy

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Price & Volume
Market price Sales volume
Jan 2026 – today
Price by Condition · 5
Anchored to market price · condition spread from TCGplayer
Near Mint
1st Edition · English
$11.87
-3.1%
Lightly Played
1st Edition · English
$13.55
-4.0%
Moderately Played
1st Edition · English
$13.07
-1.8%
Heavily Played
1st Edition · English
$10.75
+0.3%
Damaged
1st Edition · English
$8.07
-1.6%

Sea Monster of Theseus FAQ

How much is Sea Monster of Theseus worth right now?
Sea Monster of Theseus from 2017 Mega-Tins Mega Pack is trading around $11.87 on the secondary market. TCGIndex refreshes this price every day.
Is Sea Monster of Theseus going up or down?
Sea Monster of Theseus is down -9.2% over 30 days, down -3.1% over 7 days, and the trend currently reads down. The full price history is on this page.
Is Sea Monster of Theseus a good investment?
TCGIndex doesn't give financial advice, but here's the data worth knowing: it sits around $11.87, down -9.2% over the last 30 days, with low volatility. Prices can move fast, so look at the trend and your own timeframe before you buy.