Gastrodon

Steam Siege · #29/114 · Rare · 2016

$0.89

Reverse Holofoil · Market price ▲ 11.2% (30d)

Prices as of Jul 26, 2026

Normal Reverse Holofoil

HP 110WaterStage 1Art · Aya Kusube

40.9×PSA 10 vs raw

-62%off ATH $2.83 · Jan 2021

Printings & price history

Reverse Holofoil▲ 6.0% 7d$0.89

Low $0.40Mid $0.80

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Graded values

updated 2026-07-26

Grade 6 est.$1.03

Grade 5 est.$0.86

Grade 4 est.$0.71

Grade 3 est.$0.59

Grade 2 est.$0.49

Grade 1 est.$0.41

Grades 1–6 are estimates modeled from the raw price — PSA/CGC/BGS 7–10 and Ungraded are live tracked market values.

Reverse Holofoil · PSA 10 price history$64.95

PSA 10 chart is building — graded values are tracked nightly, a new point appears each day.

Attacks

20Sticky Shot

During your opponent's next turn, the Defending Pokémon's attacks cost Colorless more, and its Retreat Cost is Colorless more.

60Water Pulse

Your opponent's Active Pokémon is now Asleep.

“It apparently had a huge shell for protection in ancient times. It lives in shallow tidal pools.”

How much is Gastrodon #29/114 worth?

A raw copy of Gastrodon #29/114 (Steam Siege, 2016) is worth about $0.50 right now, based on the latest market data from July 27, 2026. Across the 2 printings we track, copies run anywhere from $0.20 to $19.98 depending on the version you're holding.

Grading changes the math on this one: a PSA 10 is valued around $36.42, roughly 72.8x the raw price, while a PSA 9 sits near $13.55.

We update this valuation every night from live market data and verify it against real completed sales — see the chart above for how Gastrodon has moved over time.