Sea Monster of Theseus 2017 Mega-Tin Mega Pack Secret Rare Yu-Gi-Oh! card — value and price

Sea Monster of Theseus

2017 Mega-Tin Mega Pack · Secret Rare
Yu-Gi-Oh! ygo:96334243 TCGplayer + Cardmarket + eBay
Fair market value low confidence
$0.43
Rough estimate from 3 market price guides. Likely $0.24 – $0.64.
▼ 31% · 47d
Sources: TCGplayer + Cardmarket + eBay · Near Mint, raw
Optimal buy
$0.36
Never pay above $0.40
Optimal sell
$0.46
Never sell below $0.44
Buy this card · aim to pay under $0.40
TCGplayer →Find on eBay →Graded (PSA 10) →Amazon: sealed →

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Selling this card
Optimal sell $0.46 · never below $0.44. Value your copy for the live net-after-fees calculator.
Where to sell
eBay~13.25% + $0.30Largest audience; on any listing use “Sell one like this” to prefill yours.TCGplayer~10–11%Best for singles; buyers expect competitive, data-driven pricing.
Shipping & protection supplies
Low value — a sleeve in a plain/bubble mailer is plenty; tracking optional under ~$20.
Penny sleevesBubble mailers

Amazon Business Free to join and gives bulk pricing on sleeves, toploaders and mailers — worth it if you ship cards often.

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Common questions
How much is Sea Monster of Theseus worth?

Sea Monster of Theseus from 2017 Mega-Tin Mega Pack has a fair market value of about $0.43 (Near Mint, raw), based on a consensus of current market price guides.

What is the best price to sell Sea Monster of Theseus?

List around $0.46 to clear without leaving money on the table; that nets about $0.00 after fees and shipping.

What should I pay to buy Sea Monster of Theseus?

A disciplined buy target is about $0.36 — a discount to fair value that keeps an edge. Aim not to pay above $0.40.

Where can I buy Sea Monster of Theseus?

Sea Monster of Theseus is sold on eBay, TCGplayer, and Amazon. Compare live listings against the fair value of $0.43 and aim to pay under $0.40 — SplitShot links you straight to current listings at each marketplace.

Is now a good time to buy Sea Monster of Theseus?

Sea Monster of Theseus is trending falling ~25% (7d vs 30d) lately. A disciplined entry is under $0.40; paying near or below $0.36 keeps a margin of safety versus the $0.43 fair value.

Estimate for guidance, not an appraisal. Value your exact copy →