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Check your printing2 different Gastrodon West Sea printings exist — is this your card? Rising Rivals #22
Gastrodon West Sea Rising Rivals #22 Pokémon card
ViewingRaw / ungraded (this page)Reverse Holo price
Rare

Gastrodon West Sea22/111 · Rising Rivals Price & Value

2009 · Illustrated by Kyoko Umemoto
110 HPFightingPokémonStage 1

Market value · Near Mint · Normal

$3.49
LiquidityRarely sells
Confidence20 · low1 raw sale in 90 days, closely clustered, last sale 2 month ago.
Sales · 90 days2
Range$3$3
Bulk card. At this price most of what a buyer pays is postage, so treat it as a rough band rather than a valuation. eBay + TCGplayer. Updated 11 September 2026. 2 sources agree within 17%. Estimate, not an appraisalhow we price →

Make sure you have the right card

Every price on this page is for Rising Rivals #22/111, 2009. Check yours against the tells below before you buy, sell or grade.

Reverse Holo
The card body, not the picture

Everything except the illustration window is foiled — the mirror image of a normal holo, where only the picture shines.

Normalpriced on this page
The whole card

No foil anywhere — the non-holo printing.

What's your copy worth?

What's your copy worth?
Not sure which condition? Grade it from a photo

See the completed sales behind these figures

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 Pokémon card from Rising Rivals (#22, released 2009), illustrated by Kyoko Umemoto. It's a Stage 1 Fighting-type Pokémon with 110 HP, evolving from Shellos West Sea, weak to Grass +30. Prices below are aggregated across marketplaces — raw and graded, updated daily and shown in your local currency.

Prices last updated 11 September 2026.

Gastrodon West Sea price history & recent sales

Price history · Raw

1 Oct 202311 Sept 2026
Latest
$3.49
Period high
$3.49
Period low
$1.09
Change
132.7% · 3Y
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Verified sales history

Low confidence

Only 1 sale in the last 90 days. · ModerateOccasional sales

Range$1.75$2.99Rawlowest to highest sale
Sales1 / 2last 30d / 90d, every grade
Sales rate0.5/mo3 recorded, every grade
Latest sale47d agoRaw1 in 90 days
Demand43/100sales rate, trend & buzz
Last sold
$3
Raw · 26 Jul 2026
Typical Raw
$2
Sales · last 90 days
2
How often it sells
Occasional sales
1 in last 30 days
Worn-condition sales — shown for context, not price-forming
These listings claimed play wear in the title (LP/MP/played/damaged), so they sell below the Near Mint price above and are excluded from it.

Real completed eBay sales, refreshed periodically. Grade read from the listing title. Implausibly priced listings (lots, proxies, empty slabs) and wrong-variant sales are filtered out. Links to eBay are affiliate links — we may earn a commission.

Recent Raw sales

From 3 completed sales recorded between Mar 9, 2026 and Aug 27, 2026. Sold prices only — asking prices are never counted.

By grade

  • Raw$2.372 sales · 1 in 90d, rare
  • CGC 9.5$24.991 sale · 1 in 90d, rare

Is Gastrodon West Sea worth grading?

+$7

Raw $3.49 → graded PSA 10$80.92, after ~$70.8 grading fee → 23.2× the raw value.

Compare graders, and the live market

The verdict above is PSA's — the grader the population report, the ROI table and the price ladder on this page all use. Trader prices all three graders against each other and adds what the asking market is doing right now.

  • PSA, CGC and Beckett side by side — each on its own population and its own fees, with Beckett scored on the 9.5 its market actually pays for.
  • Lightly and moderately played — the same expected return for a copy that cannot gem.
  • Ask vs sold — what the live listings want, against what copies have really closed at.
  • Momentum — the 30-day median against the 90-day, per grade.
  • Where it sells higher — the Fanatics-versus-eBay premium, with the sale counts behind it.
  • Population history — the weekly PSA census, so you can see how fast 10s are arriving before you post the card.
Trader plan and above

The odds

Gastrodon West Sea is a Rare in Rising Rivals — the pack's hit slot lands on Rare 67% of the time, split across 30 rare cards in the set, so pulling this exact card is roughly 1 in 45 packs.

Rare67%30 cards
PSA 10 (gem mint)20%1 of 5
PSA 90%0 of 5
PSA graded so far5
Gem Mint 101
Total graded5

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$80.92$71+$723.2×

Net = graded value − raw value − grading cost (tier fee + ~$20 round-trip shipping), using PSA fees as of 2026-08-26; the paused PSA Value tier is excluded so this isn't overstated. Real outcome depends on the grade achieved; PSA 10 is best-case.

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

1 of the 5 PSA-graded Gastrodon West Sea copies came back a gem-mint 10 — 20%. The rest graded lower.

PSA5 gradedPSA 10 · 1 · 20% gem

Bar length is relative to this grader's most common grade; the figure on the right is the share of all 5.

10120%
8240%
7120%
5120%
CGC8 gradedCGC 10 · 0 · 0% gem

Bar length is relative to this grader's most common grade; the figure on the right is the share of all 8.

9.5113%
8.5113%
8225%
7.5113%
6113%

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

Copies for sale right now

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All grades & conditions

Every grade we pricePSA / CGC / BGS ladder with per-grade population
Graded prices
Ungraded (raw)$3.49
PSA graded price estimates by grade
GradeRelative valuePrice
PSA 10pop 1modelled$81$81$81
“Sold” = median of real recent sold listings at that grade (eBay or Fanatics Collect — hover a badge to see which). “Modelled” = no verified graded sale behind the figure; it is derived from the raw price and reference guides, so treat it as a ceiling to check, not a price to quote. 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
Reverse Holofoil · NM = our estimate, lower conditions use TCGplayer condition ratios · how we price played copies
NMNear Mint$3.49
LPLightly Played$2.35
MPModerately Played$1.36
HPHeavily Played$0.86
7-day 7.9%
30-day 7.9%
90-day 21.9%
All-time high$3
All-time low$1
What NM / LP / MP actually mean — and how much they cost
Price by printingBase vs reverse holo vs 1st edition — priced separately

Price by variant

Reverse Holo$9
Normal$3

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

17% spread
PriceCharting · cheapest$3
TCGplayer · dearest$3

Currently 17% cheaper on PriceCharting 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

Cross-marketSome gap 17% gap

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

Card textAttacks, abilities, weakness / resistance / retreat

Evolves from Shellos West Sea.

Tackle50
Colorless · Colorless · Colorless
Muddy Bomb
Fighting · Colorless · Colorless

Choose 1 of your opponent's Pokémon. This attack does 30 damage to that Pokémon and 10 damage to each of your opponent's other Pokémon. (Don't apply Weakness and Resistance for Benched Pokémon.)

Raging Sea60+
Fighting · Colorless · Colorless · Colorless

Does 60 damage plus 10 more damage for each of your Benched Pokémon that has any damage counters on it.

Weakness Grass +30Resistance Lightning -20Retreat 3
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#22
RarityRare
Released2009
SupertypePokémon
SubtypesStage 1
TypeFighting
HP110
Evolves fromShellos West Sea
WeaknessGrass +30
ResistanceLightning -20
Retreat cost3
National Pokédex#423
Card IDpl2-22
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 Rising Rivals #22 (Rare).

More from Rising Rivals

Frequently asked questions

How much is Gastrodon West Sea (Rising Rivals #22) worth?

As of 11 September 2026, Gastrodon West Sea from Rising Rivals is worth approximately $3.49 ungraded (near-mint), and around $81 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 Rising Rivals is worth around $81 — roughly 23× the raw ungraded value of $3.49.

Should I grade my Gastrodon West Sea?

Grading is worth it when the PSA 10 premium comfortably beats the grading fee and the card is clean enough to have a real shot at a 10 — the "Should you grade it?" estimate above works that out per grade, net of the current fee.

Is Gastrodon West Sea rare?

Gastrodon West Sea is a Rare card from Rising Rivals (card #22).

How do I know if my Gastrodon West Sea is Reverse Holo?

The card body, not the picture: Everything except the illustration window is foiled — the mirror image of a normal holo, where only the picture shines.

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Citation
Gastrodon West Sea (Rising Rivals #22) — Pokémon market value $3.49, PSA 10 $80.92. Source: CardTrack, https://cardtrack.com/pokemon/card/rising-rivals/gastrodon-west-sea-22
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