
Sea Monster of Theseus
Yu-Gi-Oh!2017 Mega-Tins Mega Pack#MP17-EN231
- Language
- Not recorded yet
- Finish
- Not recorded yet
- Rarity
- Secret Rare
- Number
- MP17-EN231
- Versions
- Language pending · Finish pending
Seller offers
This variant is currently unavailable.
As soon as a verified seller lists this edition, the offer appears here. A price alert keeps you informed.
Price development
- Oldest value
- €3.13
- Sep 25, 2026
- Lowest
- €0.26
- Oct 16, 2026
- Highest
- €3.13
- Sep 25, 2026
- Change in period
- −79.9 %
- €0.63
28 price points from Sep 25, 2026 to Oct 28, 2026. Hover or touch the curve to read values.
Price profile of the last 30 days (rolling averages)
Standard
- Trend
- €0.63
- Ø 1 day
- €3.49
- Ø 7 days
- €2.70
- Ø 30 days
- €8.00
- Lowest
- €1.00
Foil
- Trend
- €0.65
- Ø 1 day
- €0.40
- Ø 7 days
- €0.60
- Ø 30 days
- €0.61
- Lowest
- –
28 snapshots from 25 Sept 2026 to 28 Oct 2026. Line: trend, dashed: lowest price.
Values as table
| As of | Standard Trend | Standard Ø 1 day | Standard Ø 7 days | Standard Ø 30 days | Standard Lowest | Foil Trend | Foil Ø 1 day | Foil Ø 7 days | Foil Ø 30 days | Foil Lowest |
|---|---|---|---|---|---|---|---|---|---|---|
| 25 Sept 2026 | €3.13 | €7.50 | €8.16 | €9.96 | €1.50 | €0.65 | €0.40 | €0.60 | €0.61 | – |
| 26 Sept 2026 | €2.55 | €7.50 | €8.16 | €9.96 | €1.50 | €0.65 | €0.40 | €0.60 | €0.61 | – |
| 29 Sept 2026 | €2.55 | €7.50 | €8.16 | €9.96 | €1.50 | €0.65 | €0.40 | €0.60 | €0.61 | – |
| 30 Sept 2026 | €2.55 | €7.50 | €8.16 | €9.96 | €1.50 | €0.65 | €0.40 | €0.60 | €0.61 | – |
| 2 Oct 2026 | €1.63 | €7.50 | €8.16 | €9.96 | €1.50 | €0.65 | €0.40 | €0.60 | €0.61 | – |
| 3 Oct 2026 | €1.63 | €7.50 | €8.16 | €9.96 | €1.50 | €0.65 | €0.40 | €0.60 | €0.61 | – |
| 4 Oct 2026 | €1.63 | €2.40 | €3.99 | €8.56 | €1.50 | €0.65 | €0.40 | €0.60 | €0.61 | – |
| 6 Oct 2026 | €1.63 | €2.40 | €3.99 | €8.56 | €1.50 | €0.65 | €0.40 | €0.60 | €0.61 | – |
| 7 Oct 2026 | €1.63 | €2.40 | €3.99 | €8.56 | €1.50 | €0.65 | €0.40 | €0.60 | €0.61 | – |
| 8 Oct 2026 | €1.63 | €2.40 | €3.99 | €8.56 | €1.50 | €0.65 | €0.40 | €0.60 | €0.61 | – |
| 9 Oct 2026 | €1.63 | €2.40 | €3.99 | €8.56 | €1.50 | €0.65 | €0.40 | €0.60 | €0.61 | – |
| 10 Oct 2026 | €1.63 | €2.40 | €3.99 | €8.56 | €1.50 | €0.65 | €0.40 | €0.60 | €0.61 | – |
| 11 Oct 2026 | €1.63 | €2.40 | €3.99 | €8.56 | €1.50 | €0.65 | €0.40 | €0.60 | €0.61 | – |
| 12 Oct 2026 | €0.44 | €1.95 | €3.37 | €8.44 | €1.50 | €0.65 | €0.40 | €0.60 | €0.61 | – |
| 14 Oct 2026 | €0.44 | €1.95 | €3.37 | €8.44 | €1.50 | €0.65 | €0.40 | €0.60 | €0.61 | – |
| 15 Oct 2026 | €0.44 | €1.95 | €3.37 | €8.44 | €1.50 | €0.65 | €0.40 | €0.60 | €0.61 | – |
| 16 Oct 2026 | €0.26 | €1.95 | €3.37 | €8.44 | €1.18 | €0.65 | €0.40 | €0.60 | €0.61 | – |
| 17 Oct 2026 | €0.26 | €1.95 | €3.37 | €8.44 | €1.18 | €0.65 | €0.40 | €0.60 | €0.61 | – |
| 18 Oct 2026 | €0.26 | €1.69 | €2.57 | €8.29 | €1.18 | €0.65 | €0.40 | €0.60 | €0.61 | – |
| 19 Oct 2026 | €0.26 | €1.69 | €2.57 | €8.29 | €1.18 | €0.65 | €0.40 | €0.60 | €0.61 | – |
| 20 Oct 2026 | €0.63 | €1.69 | €2.57 | €8.29 | €1.18 | €0.65 | €0.40 | €0.60 | €0.61 | – |
| 21 Oct 2026 | €0.63 | €3.49 | €2.70 | €8.00 | €1.18 | €0.65 | €0.40 | €0.60 | €0.61 | – |
| 22 Oct 2026 | €0.63 | €3.49 | €2.70 | €8.00 | €1.18 | €0.65 | €0.40 | €0.60 | €0.61 | – |
| 24 Oct 2026 | €0.63 | €3.49 | €2.70 | €8.00 | €1.18 | €0.65 | €0.40 | €0.60 | €0.61 | – |
| 25 Oct 2026 | €0.63 | €3.49 | €2.70 | €8.00 | €1.18 | €0.65 | €0.40 | €0.60 | €0.61 | – |
| 26 Oct 2026 | €0.63 | €3.49 | €2.70 | €8.00 | €1.18 | €0.65 | €0.40 | €0.60 | €0.61 | – |
| 27 Oct 2026 | €0.63 | €3.49 | €2.70 | €8.00 | €1.18 | €0.65 | €0.40 | €0.60 | €0.61 | – |
| 28 Oct 2026 | €0.63 | €3.49 | €2.70 | €8.00 | €1.00 | €0.65 | €0.40 | €0.60 | €0.61 | – |
Realised sales
As of 3 Oct 20261 realised sale on eBay · 2 Oct 2026 to 2 Oct 2026
- Median
- €2.99
- Typical range
- ~€2.99
- Lowest
- €2.99
- Highest
- €2.99
Latest sales
- 2 Oct 2026Condition unknown€2.99
More eBay markets
5 marketplacesRealised sales on other eBay marketplaces in local currency – expand a row for details per market.
United StatesUSD9 realised salesUS$2.95≈ €2.65
9 realised sales on eBay United States · 25 Aug 2026 to 12 Sept 2026
- Median
- US$2.95≈ €2.65
- Typical range
- US$1.99 – 3.88≈ €1.78 – €3.48
- Lowest
- US$0.99≈ €0.89
- Highest
- US$15.99≈ €14.34
Latest sales
- 12 Sept 2026Condition unknownUS$1.60≈ €1.43
- 6 Sept 2026Condition unknownUS$0.99≈ €0.89
- 4 Sept 2026Condition unknownUS$1.99≈ €1.78
- 4 Sept 2026Condition unknownUS$2.49≈ €2.23
- 4 Sept 2026Condition unknownUS$6.99≈ €6.27
9 ungraded sales across 3 weeks with sales · weekly median of realised prices, not a forecast.
Values as table
| Week of | Sales | Median | ≈ EUR |
|---|---|---|---|
| 24 Aug 2026 | 1 | US$15.99 | ≈ €14.34 |
| 31 Aug 2026 | 7 | US$2.95 | ≈ €2.65 |
| 7 Sept 2026 | 1 | US$1.60 | ≈ €1.43 |
As of 3 Oct 2026 · Realised prices, not offers on this platform. USD values come from sales on eBay United States.
United KingdomGBP22 realised sales£13.99≈ €16.72
22 realised sales on eBay United Kingdom · 7 Jul 2026 to 25 Sept 2026
- Median
- £13.99≈ €16.72
- Typical range
- £7.32 – £16.11≈ €8.75 – €19.26
- Lowest
- £0.99≈ €1.18
- Highest
- £19.99≈ €23.89
Latest sales
- 25 Sept 2026Condition unknown£1.65≈ €1.97
- 9 Sept 2026Condition unknown£0.99≈ €1.18
- 4 Sept 2026Condition unknown£0.99≈ €1.18
- 4 Sept 2026Condition unknown£1.38≈ €1.65
- 29 Aug 2026Condition unknown£6.52≈ €7.79
37 ungraded sales across 14 weeks with sales · weekly median of realised prices, not a forecast.
Values as table
| Week of | Sales | Median | ≈ EUR |
|---|---|---|---|
| 2 Mar 2026 | 1 | £2.50 | ≈ €2.99 |
| 15 Jun 2026 | 2 | £15.74 | ≈ €18.81 |
| 22 Jun 2026 | 4 | £17.08 | ≈ €20.42 |
| 29 Jun 2026 | 8 | £16.50 | ≈ €19.72 |
| 6 Jul 2026 | 4 | £13.99 | ≈ €16.72 |
| 13 Jul 2026 | 3 | £17.00 | ≈ €20.32 |
| 20 Jul 2026 | 2 | £16.15 | ≈ €19.30 |
| 27 Jul 2026 | 1 | £16.14 | ≈ €19.29 |
| 3 Aug 2026 | 2 | £15.54 | ≈ €18.58 |
| 17 Aug 2026 | 4 | £12.00 | ≈ €14.34 |
| 24 Aug 2026 | 2 | £4.11 | ≈ €4.91 |
| 31 Aug 2026 | 2 | £1.18 | ≈ €1.41 |
| 7 Sept 2026 | 1 | £0.99 | ≈ €1.18 |
| 21 Sept 2026 | 1 | £1.65 | ≈ €1.97 |
As of 3 Oct 2026 · Realised prices, not offers on this platform. GBP values come from sales on eBay United Kingdom.
FranceEUR1 realised sale€1.00
1 realised sale on eBay France · 3 Sept 2026 to 3 Sept 2026
- Median
- €1.00
- Typical range
- ~€1.00
- Lowest
- €1.00
- Highest
- €1.00
Latest sales
- 3 Sept 2026Condition unknown€1.00
As of 3 Oct 2026 · Realised prices, not offers on this platform. EUR values come from sales on eBay France.
CanadaCAD7 realised salesCA$1.99≈ €1.27
7 realised sales on eBay Canada · 1 Sept 2026 to 30 Sept 2026
- Median
- CA$1.99≈ €1.27
- Typical range
- CA$1.49 – 2.00≈ €0.95 – €1.28
- Lowest
- CA$0.99≈ €0.63
- Highest
- CA$2.00≈ €1.28
Latest sales
- 30 Sept 2026Condition unknownCA$1.99≈ €1.27
- 25 Sept 2026Condition unknownCA$2.00≈ €1.28
- 11 Sept 2026Condition unknownCA$0.99≈ €0.63
- 7 Sept 2026Condition unknownCA$1.99≈ €1.27
- 4 Sept 2026Condition unknownCA$2.00≈ €1.28
As of 3 Oct 2026 · Realised prices, not offers on this platform. CAD values come from sales on eBay Canada.
AustraliaAUD7 realised salesA$2.18≈ €1.37
7 realised sales on eBay Australia · 26 Aug 2026 to 24 Sept 2026
- Median
- A$2.18≈ €1.37
- Typical range
- A$2.09 – 2.75≈ €1.32 – €1.73
- Lowest
- A$1.70≈ €1.07
- Highest
- A$19.99≈ €12.61
Latest sales
- 24 Sept 2026Condition unknownA$3.00≈ €1.89
- 24 Sept 2026Condition unknownA$1.99≈ €1.26
- 21 Sept 2026Condition unknownA$1.70≈ €1.07
- 10 Sept 2026Condition unknownA$2.18≈ €1.37
- 9 Sept 2026Condition unknownA$2.18≈ €1.37
As of 3 Oct 2026 · Realised prices, not offers on this platform. AUD values come from sales on eBay Australia.
Local-currency values come from sales on the respective eBay marketplace; not offers on this platform. Euro amounts are approximations at the ECB reference rate of 27 Oct 2026 (1 EUR = 1.1150 USD · 1 EUR = 0.8366 GBP · 1 EUR = 1.5636 CAD · 1 EUR = 1.5856 AUD).
As of 3 Oct 2026 · Realised prices, not offers on this platform.
Market data worldwide
Asking price (EUR)
As of 15 Oct 2026- Asking price
- €0.28
- Archive values
US market (USD)
As of 28 Oct 2026- 1st EditionLowest US$0.49 · Median US$4.83US$1.417 d−41.2 %30 d−82.0 %
Other printings
More cards from this set
2017 Mega-Tins Mega Pack- Angel Trumpeter
2017 Mega-Tins Mega Pack · #MP17-EN001
Language and finish to follow
No offer at the moment
Reference €0.02
- Performapal Sellshell Crab
2017 Mega-Tins Mega Pack · #MP17-EN002
Language and finish to follow
No offer at the moment
Reference €0.02
- Performapal Fireflux
2017 Mega-Tins Mega Pack · #MP17-EN003
Language and finish to follow
No offer at the moment
Reference €0.02
- Speedroid Den-Den Daiko Duke
2017 Mega-Tins Mega Pack · #MP17-EN004
Language and finish to follow
No offer at the moment
Reference €0.02
- Speedroid Pachingo-Kart
2017 Mega-Tins Mega Pack · #MP17-EN005
Language and finish to follow
No offer at the moment
Reference €0.02
- Raidraptor - Avenge Vulture
2017 Mega-Tins Mega Pack · #MP17-EN006
Language and finish to follow
No offer at the moment
Reference €0.02






