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Check your printing2 different Gastrodon West Sea printings exist — is this your card? Secret Wonders #9
Gastrodon West Sea Secret Wonders #9 Pokémon card
Rare Holo

Gastrodon West Sea

Secret Wonders · 9/132 · Illustrated by Kazuyuki Kano
100 HPFightingPokémonStage 1

Market value · ungraded · Holofoil

$10.93 1.6% · 30d
Confidencemedium
Range$5$11
Cert-verified10 PSA sales
Sold prices, not asking. TCGplayer + Cardmarket. Updated 20 August 2026. Estimate, not an appraisalhow we price →

What's your copy worth?

What's your copy worth?
Not sure which condition? Grade it from a photo
Estimated value · Near Mint
$10.93

What this price is based on

Medium confidence

36 sales in 90 days, but prices vary widely.

Median · Raw$6.9937 sales
Trimmed mean$7.41outliers removed
Range$2.99$27.06lowest to highest sale
Sales rate7/mo42 recorded

What each version actually sells for

PrintingNear MintLightly PlayedModerately Played
Common$9.00 15 sales$7.49 10 sales

Every figure is the median of real completed sales whose listing claimed that printing and condition — not a percentage of the headline price. A dash means we haven't seen enough sales of that exact version to publish one.

Recent Raw sales

  • Aug 13, 2026eBay — Gastrodon West Sea 9/132 Holo Pokemon Secret Wonders Near MintNM$27.06
  • Aug 13, 2026eBay — Gastrodon West Sea 9/132 Holo Rare Secret Wonders Pokemon$3.53
  • Aug 7, 2026eBay — Gastrodon West Sea 9/132 Secret Wonders Holo Pokemon Card$7.99
  • Aug 6, 2026eBay — Gastrodon West Sea 9/132 Holo Rare Secret Wonders Pokemon Card$5.99
  • Aug 6, 2026eBay — Gastrodon West Sea 9/132 Secret Wonders Holo Pokemon LPLP$7.99
  • Aug 2, 2026eBay — Pokemon Card - Gastrodon West Sea Holo - Secret Wonders - 9/132 - Rare - DamagedDM$2.99
  • Aug 1, 2026eBay — Gastrodon West Sea 9/132 Holo Rare Secret Wonders Pokemon Lightly PlayedLP$13.99
  • Jul 31, 2026eBay — Gastrodon West Sea 9/132 Holo Rare Secret Wonders Pokemon DamagedDM$2.99

By grade

  • Raw$6.9937 sales
  • PSA 8$46.502 sales
  • CGC 8.5$29.992 sales
  • PSA 7$20.281 sale

From 42 completed sales recorded between May 20, 2026 and Aug 13, 2026. Sold prices only — asking prices are never counted. The range is wide because these sales span different printings and conditions — 1st Edition, Shadowless and Unlimited copies all carry this card's name, and they trade at very different levels. Each sale above is labelled with what its listing claimed, so you can see which ones describe the same object. Treat the median as the typical copy, not the range.

Grade it or not

NOT WORTH IT

Based on 5 graded sales and 1,305,862 pop-report entries for a near-mint copy.

See the numbers — Trader plan and above

Buy this card

ViewingRaw / ungraded (this page)Reverse Holo price

Is it worth it?

An AI market read of this card — value, momentum, grading economics, liquidity. It lays out the data; you decide.

Sign in to analyse

Gastrodon West Sea is a Rare Holo Pokémon card from Secret Wonders (#9), illustrated by Kazuyuki Kano. It's a Stage 1 Fighting-type Pokémon with 100 HP, evolving from Shellos West Sea, weak to Grass +30. Its current blended market value is $10.93 ungraded, with a PSA 10 worth around $210 — a gem-mint grading premium of roughly 19× the raw value. Prices are aggregated across marketplaces — raw and graded, updated daily and shown in your local currency.

Prices last updated 20 August 2026.

The receipts

Graded a PSA 9? See its cert-verified sales and price history — individual sales PSA tied to a specific slab, each with a cert number you can check.

Price history · Raw

1 Sept 202320 Aug 2026
Latest
$10.93
Period high
$10.93
Period low
$2.50
Change
188.4%
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Verified sales history10 in 90 daysreal completed listings

DateGradePriceCert
14 Aug 2026PSA 8$80.00#155963029
14 Aug 2026PSA 8$55.00#71410990
12 Aug 2026PSA 8$49.99#155962029
24 Jul 2026PSA 8$38.00#71410991
22 Jun 2026PSA 8$37.00#44043826
17 Jun 2026PSA 7$20.28#147017331
13 Apr 2026PSA 6$12.50#143109002
7 Apr 2026PSA 9$135.00#138855035
16 Feb 2026PSA 5$6.50#73229093
2 Feb 2026PSA 9$90.00#69625909

Should you grade it?

$37

Expected return across every likely grade, after fees — the realistic average, not the best case. Only 4% of copies gem (PSA 10 best case +$127); most land at PSA 9 or below.

Gem rate (est.)4%
Expected return$37
PSA 10 best case+$127
Break-evenPSA 9+
VerdictNot worth it

The odds

Gastrodon West Sea is a Holo / V / ex in Secret Wonders — the pack's hit slot lands on Holo / V / ex 33% of the time, split across 22 holo / v / ex cards in the set, so pulling this exact card is roughly 1 in 67 packs.

Holo / V / ex33%22 cards
PSA 10 (gem mint)4%5 of 126
PSA 934.1%43 of 126
PSA graded so far126
Gem Mint 105
Total graded126

Estimates only. Pack odds come from CardTrack's pack model (the same one behind the pack simulator) — not an official rate. Grading odds are the real cumulative PSA population, which skews toward nicer, resubmitted copies, so it overstates the true first-submission gem rate. Full grade-by-grade breakdown below.

Grade-by-grade ROI & risk-adjusted outcomesNet vs raw per target grade, plus the probability-weighted distribution
Target gradeEst. valueGrading feeNet vs rawMultiple
PSA 10$209.55$72+$12719.2×
PSA 9$90.00$71+$88.2×
PSA 8$50.00$70$314.6×

⚖️ Risk-adjusted return

Best case isn't the whole story. Weighting every grade by how often it actually happens, across 126 PSA-graded copies:

Likely outcomeChanceValue
PSA 104%$210.00
PSA 934.1%$90.00
PSA ≤861.9%$11.00

Net = graded value − raw value − grading cost (tier fee + ~$20 round-trip shipping), using PSA fees as of 2026-06-28; the paused PSA Value tier is excluded so this isn't overstated. Gem rate is estimated from cumulative PSA population, which skews toward nicer, resubmitted copies — so it overstates the true grade rate. Treat it as a guide, not a guarantee.

Population across gradersPSA, CGC & BGS — every grade, with gem rates

Only 4% of 126 PSA-graded Gastrodon West Sea copies are a gem-mint 10 (5 of 126) — the rest grade lower.

PSA126 gradedPSA 10 · 5 · 4% gem
105
943
8.51
844
717
66
57
41
31
21
CGC204 gradedCGC 10 · 10 · 5% gem
1010
9.54
944
8.536
836

Real graded population from PSA, CGC & BGS — a lower gem rate means a Gastrodon West Sea 10 is harder to pull.

Copies for sale right now

Check recent sold prices

Affiliate links — we may earn a commission. Prices shown are sold-based, not sponsored placements.

All grades & conditions

Every grade we pricePSA / CGC / BGS ladder with per-grade population
Graded prices
Ungraded (raw)$10.76
PSA graded price estimates by grade
GradeRelative valuePrice
PSA 10pop 5$210$210$210
PSA 9pop 43✓ 6 cert-verified$90$76$90
PSA 8pop 44✓ 11 cert-verified$50$13$50
PSA 7pop 17$19$6$20
PSA 6pop 6$13$13$13
PSA 5pop 7$7$7$7
“Sold” = median of real recent sold listings at that grade (eBay or Fanatics Collect — hover a badge to see which). Other figures are blended marketplace estimates. Confidence reflects source backing and price spread — not PSA-official values.
Raw condition ladderNM → damaged, with real sold medians where we have them
Raw price by condition
Holofoil · live market via TCGplayer
NMNear Mint$10.93
LPLightly Played$6.52
MPModerately Played$3.58
HPHeavily Played$2.42
DMGDamaged$2.20
7-day 8.5%
30-day 9.5%
90-day 11.3%
All-time high$11
All-time low$6
Other printingsReverse Holofoil · $9.96
What NM / LP / MP actually mean — and how much they cost

For context: a graded PSA 5 slab of this card sells for about $9 (cert-verified) — a heavily-played raw copy shouldn't cost much more than that.

Price by printingBase vs reverse holo vs 1st edition — priced separately

Price by variant

Reverse Holo$11
Holofoil$11

TCGplayer market price per printing — reverse holo, 1st edition and unlimited often differ sharply.

Market dataCross-market spread, EU price, momentum & community buzz

Cross-market prices

124% spread
Cardmarket · cheapest$5
PriceCharting$7
TCGplayer · dearest$11

Currently 124% cheaper on Cardmarket than TCGplayer. These are independent market prices for the same card — a wide gap can mean a buying opportunity. Informational only, not arbitrage advice.

Market signal

Momentum · 30dFlat +2%
Cross-marketMarkets disagree 124% gap

Derived from this card's 90-day price history, recent trend and cross-market price gap. Informational, not advice.

🇪🇺 Cardmarket price · Europe

55% cheaper than the US
Cardmarket · Europe's largest card market$5
Card textAttacks, abilities, weakness / resistance / retreat

Evolves from Shellos West Sea.

Raging Flood20+
Fighting · Colorless

Does 20 damage plus 10 more damage for each damage counter on Gastrodon West Sea. Then, remove 2 damage counters from Gastrodon West Sea.

Wild Waves80
Fighting · Colorless · Colorless · Colorless

Put 1 damage counter on each Benched Pokémon (both yours and your opponent's).

Weakness Grass +30Resistance Lightning -20Retreat 4

It has a pliable body without any bones. If any part of its body is torn off, it grows right back.

About the PokémonSpecies, generation, evolution line
Sea Slug PokémonGEN IVShellosGastrodon

It has a pliable body without any bones. If any part of its body is torn off, it grows right back.

Card detailsSet, rarity, artist, Pokédex & specs
Number#9
RarityRare Holo
SupertypePokémon
SubtypesStage 1
TypeFighting
HP100
Evolves fromShellos West Sea
WeaknessGrass +30
ResistanceLightning -20
Retreat cost4
National Pokédex#423
Card IDdp3-9
SourceAggregated marketplaces

Other Gastrodon West Sea cards

There are 2 different Gastrodon West Sea printings — make sure you're valuing the right one. This is Secret Wonders #9 (Rare Holo).

More from Secret Wonders

Frequently asked questions

How much is Gastrodon West Sea (Secret Wonders #9) worth?

As of 20 August 2026, Gastrodon West Sea from Secret Wonders is worth approximately $10.93 ungraded (near-mint), and around $210 in PSA 10 gem mint. Values are blended from real Cardmarket, eBay sold and TCGplayer prices and update daily.

What is the PSA 10 price for Gastrodon West Sea?

A PSA 10 (gem mint) Gastrodon West Sea from Secret Wonders is worth around $210 — roughly 19× the raw ungraded value of $10.93.

Should I grade my Gastrodon West Sea?

A PSA 10 sells for about $210 versus $10.93 raw — roughly a 19× uplift. Grading is worth it when that premium comfortably beats the grading fee and the card is clean enough to have a real shot at a 10. See the "Should you grade it?" estimate above for net profit per grade.

Is Gastrodon West Sea rare?

Gastrodon West Sea is a Rare Holo card from Secret Wonders (card #9), illustrated by Kazuyuki Kano. Its current blended market value is $10.93 ungraded.

Cite & embed this card

Free to use with attribution to CardTrack.

Citation
Gastrodon West Sea (Secret Wonders #9) — Pokémon market value $10.93, PSA 10 $209.55. Source: CardTrack, https://cardtrack.com/pokemon/card/secret-wonders/gastrodon-west-sea-9
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