Gastrodon

Cards Steam Siege #29

◐ Water

Gastrodon - Steam Siege (#29)

Pokémon Stage 1 Rare HP 110
Market price
$0.80
reverseHolofoil · 2 variants
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Number
29
Illustrator
Aya Kusube
Energy
Water
It apparently had a huge shell for protection in ancient times. It lives in shallow tidal pools.
i About this card

Gastrodon - Steam Siege

Gastrodon is a Rare Pokémon card from the Steam Siege Pokémon TCG set, released 2016, illustrated by Aya Kusube. It sits at card number 29 in the Steam Siege checklist, classified as a Water-type Pokémon with 110 HP and the Stage 1 subtype.

In collector terms, this is a standard rare. Current TCGplayer market price tops out at $0.80 across 2 printed variants (Normal, Holofoil, Reverse Holo, etc.), with every variant's low / mid / high and direct prices listed below.

Gastrodon has been printed 4 times across different sets. The variant you're looking at (#29 in Steam Siege) is one of them - see every other printing further down to compare art, rarity, and current market price across all versions.

Catchinary Index Value

CIV 40Average

Weak icon status.

Market Heat 40

30 / 90 / 365-day price momentum.

Icon Status 30

Cultural recognition + iconic-set bonus.

Era Strength 65

Release-window weight.

Score blends market heat, grading upside, icon status, era strength. How CIV works →

Prices USD 2 days ago · 2026-06-09 08:06 UTC

normal
$0.51
Low $0.25 Mid $0.50 High $1.99
reverseHolofoil
$0.80
Range hidden: thin trading skews TCGplayer's historical low/high. Market price above is the recent-sales weighted average.

Where to buy on eBay live marketplace

Live listings load on-demand for cards above $5 market price. For this card, search eBay directly:

Search eBay manually →
Catchinary may earn a commission on eBay purchases via these links. Prices and availability change live.

Market price history

Latest
$0.80
Low
$0.49
Dec 2025
High
$2.83
Jan 2021
Avg
$1.06
Days tracked
109
data points
Change
-71.7%
since first tracked
Tracked since Jan 1, 2021 · 109 data points

Sale History 64 sales · since 2021-01-01

Raw high $2.83
Date Grade Price Lot
RAW $0.55
RAW $0.89
RAW $0.60
RAW $0.65
RAW $0.49
RAW $0.50
RAW $1.56
RAW $1.17
RAW $1.17
RAW $1.18
RAW $1.24
RAW $1.14
RAW $1.27
RAW $1.27
RAW $1.32
? Card FAQ

Gastrodon FAQ

Click any question to expand. Every answer pulls from this card's live Catchinary data.

How much is Gastrodon from Steam Siege worth?

Recent recorded market price is $0.80 (latest tracked snapshot 2026-06-10) across 2 variants. See the variant breakdown above for per-variant low / mid / high / market spread and the market price history chart for the long-term arc. Graded estimates (PSA 10, PSA 9, CGC Perfect) are shown when auction data is available.

How rare is Gastrodon?

This printing is a standard rare (the card is labeled "Rare" on the checklist). Gastrodon has been printed 4 times across different sets - earlier or limited printings often command premiums even when the rarity tier is identical.

Who illustrated Gastrodon?

Aya Kusube illustrated this card. See Aya Kusube's full Catchinary page for every Pokémon card they've drawn, grouped by set with current market prices, career stats, and alt-art highlights.

When was Gastrodon released?

The Steam Siege set released in 2016, so this card (#29 in the set) has been available since then. Its current and historical market price is tracked above.

Where can I buy Gastrodon?

The "Where to buy on eBay" panel above shows live listings. For long-term holds, consider graded copies (PSA / CGC) which trade separately and usually at a premium over raw.

Is this card in Standard format?

Legal formats rotate as new sets release - see the Steam Siege set page for current Standard / Expanded / Unlimited status. Catchinary tracks 0 cards across every English-language set, so if this one has rotated out there's almost certainly a current-format reprint you can check.