Gastrodon East Sea #21

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Part of Set

Rising Rivals

Rising Rivals

120 cards

Gastrodon East Sea #21

Rising Rivals · Pokémon TCG

Market Value (Raw)

£3.99

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Price by Grade

Ungraded

£3.99

PSA 10

—

PSA 9

—

PSA 8

—

BGS 10

—

BGS 9.5

—

CGC 10

—

CGC 9.5

—

SGC 10

—

Card Number#21
RarityRare
TypeWater
HP90
SetRising Rivals

Pokédex — gastrodon

Sea Slug Pokémon

Type

waterground

Weakness

grass

Evolution

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

Gastrodon East Sea #21 from the Rising Rivals set. Current raw market value: $5.05.Click the eBay button above to find this exact card on eBay UK.

Price History

Live▲ 46.8%23 data points

Price history pooled from marketplace sources (eBay, TCGPlayer) · Updated daily · Hover for details

Price by Grade

Estimated from price models — not live graded sales

Estimated values modelled from raw market prices · Verify before trading · Hover for details

Investment Analysis

Current Value

$5.05

Market price (raw)

Price Range

$4.21 – $5.99

52-week estimate

Volatility

16%

Moderate movement

Market Trend

→ Stable

Short-term outlook

Analysis is algorithmically generated and should not be considered financial advice.

Variant Prices

Normal3d ago
Range $1.63 – $32.92
TCGPlayer
$2.41
mid $2.41
Cardmarket
€1.14
30d €1.02
Reverse3d ago
Range $1.63 – $32.92
TCGPlayer
$2.41
mid $2.41
Cardmarket
€1.14
30d €1.02
Variant prices from TCGPlayer & Cardmarket via TCGdex · refreshed daily

About Gastrodon East Sea — Rising Rivals

Gastrodon East Sea is a Stage 1 card from the Rising Rivals set (card #21). It carries a rarity of Rare, placing it in the standard tier of desirability within this expansion. As a Water-type Pokémon, Gastrodon East Sea brings distinct strategic advantages to TCG gameplay.

Water-type Pokémon offer versatility with spread damage and energy acceleration. A staple in many competitive archetypes.

Gastrodon East Sea is a Stage 1 Pokémon, evolved from a Basic form. Stage 1 Pokémon offer a significant power spike over their Basic counterparts and are crucial mid-game attackers.

With 90 HP, Gastrodon East Sea has solid mid-tier health, offering a balance between offence and survivability.

Rarity & Collectibility

Rare cards feature holographic treatments and are among the more sought-after pulls in any pack. With lower pull rates than commons and uncommons, rares from popular sets can appreciate nicely over time.

Explore other Rare cards in our database.

Gastrodon East Sea Price Analysis

With a market value of $5.05, Gastrodon East Sea represents an accessible mid-range card from the Rising Rivals set. Cards in this price range are excellent candidates for grading — if you can pull a pristine copy and submit it for PSA or CGC grading, the premium on a gem mint copy could deliver solid returns.

From an investment perspective, Gastrodon East Sea benefits from being a Rare card in the Rising Rivals expansion. Cards from popular sets with iconic Pokémon tend to appreciate 15-30% annually once the set goes out of print. Monitor price trends and consider grading valuable copies for maximum resale value.

How to Buy Gastrodon East Sea

The best way to find Gastrodon East Sea at a fair price is to check live market data. Our price tracking aggregates completed eBay sales so you see what collectors actually pay — not inflated listing prices. Use the eBay button above to search for this exact card, or browse all Rising Rivals cards to compare prices across the set.

Always verify card condition before purchasing. Check the seller\'s feedback rating, review photos carefully, and compare prices against our market data to ensure you\'re getting a fair deal. Learn more in our guide to spotting fake cards and our price guide overview.

Grade this card

Investment Scorecard

46/ 100

Moderate

Gastrodon East Sea · Rising Rivals

Rarity40 · 30%
Set Age50 · 20%
Price Stability46 · 25%
Popularity50 · 25%

Not financial advice. This score is algorithmically generated from rarity, market data, and popularity signals. Always do your own research before purchasing.

Recent Price Data

Last 8 recorded prices from eBay

Avg Price

$4.32

▼ 14.4% vs current

DateSourcePricevs Current
Oct 14, 2026ebay$5.05▲0.0%
Oct 7, 2026ebay$4.30▼14.9%
Sep 30, 2026ebay$4.19▼17.0%
Sep 23, 2026ebay$4.49▼11.1%
Sep 16, 2026ebay$4.46▼11.7%
Sep 9, 2026ebay$4.57▼9.5%
Aug 12, 2026ebay$4.09▼19.0%
Aug 5, 2026ebay$3.44▼31.9%

Price data from eBay completed listings · Updated daily via automated pipeline

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