Pokémon · XY
Gastrodon
Steam Siege · #29 · Rare · 2016
Listings
No active listings
From
—
Market reference
$0.50
TCGPlayer
Current listings on The Game Traders
No active listings for this card right now.
Card facts
Quick reference for collectors and graders.
- Set position
- 29 / 116
- Release year
- 2016
- Rarity
- Rare
- HP
- 110
- Subtype
- Stage 1
- Evolves from
- Shellos
- Retreat cost
- 2 energy
- Illustrator
- Aya Kusube
- Pokédex #
- 423
- Series
- XY
Card analysis
Computed from this card's stats and text — not a reposted price.
- Primary role
- Status Conditions
- Damage efficiency
- 60 damage
- 20 per Energy
- Prize liability
- 1 Prize given up
- Single-prize attacker — favourable prize trades
- Setup
- Stage 1
- One evolution step from a Basic
Also does
Strategy & play
How Gastrodon plays — derived from its stats and the rules of the game, not an opinion.
- Inflicts Sleep — they flip each turn to wake, so it’s a coin-flip lock: disruptive but unreliable on its own.
- Its main attack (Water Pulse) needs 3 Energy — a turn-3 swing on manual attachment — you’ll want Energy acceleration to power it up on time.
- Needs Water Energy to attack — your line must supply that color.
- Water type, weak to Grass ×2 — a Grass attacker doing ≥55 effectively one-shots it.
- A single-prize attacker — prize-trade-positive against ex / V decks that give up two at a time.
- A Stage 1 — one step up from Shellos; doesn’t help your opening hand, but quick to set up.
How to beat Gastrodon
- Exploit its Grass weakness — ≥55 damage one-shots it.
- Gust it before the evolution is set up.
- On the receiving end of a condition? Retreat, switch, or evolve to wipe it — conditions only stick to the Active.
Competitive performance
From real Standard tournament decks over the last 180 days.
- Meta inclusion
- 0% of decks
- 1.17 copies on average · 6 decks
More by Aya Kusube
This card was illustrated by Aya Kusube.
Building around Gastrodon?
Drop it into the deck builder for a live consistency score, synergy suggestions, and Standard legality checks.
About this card
"It apparently had a huge shell for protection in ancient times. It lives in shallow tidal pools."
WSticky Shot — 20
During your opponent's next turn, the Defending Pokémon's attacks cost Colorless more, and its Retreat Cost is Colorless more.
WWWWater Pulse — 60
Your opponent's Active Pokémon is now Asleep.
Weakness:G×2
Retreat cost:CC
Tournament legality
Current legal status across competitive formats.
Recent tournament results
View calendar →Tournaments from the past 30 days where Gastrodon was legal.
Pricing reference
Latest snapshot from the upstream catalog. Actual marketplace prices fluctuate by condition, edition, and grade — use this as a reference, not a quote.
TCGPlayer (USD)
Updated 2026/07/18| Variant | Low | Mid | High | Market | Direct Low |
|---|---|---|---|---|---|
| Normal | $0.25 | $0.50 | $2.99 | $0.50 | $0.41 |
| Reverse Holofoil | $0.40 | $0.80 | $19.98 | $0.84 | — |
Cardmarket (EUR)
Updated 2026/06/08| Variant | Price |
|---|---|
| 1-day average | €0.24 |
| 7-day average | €0.38 |
| 30-day average | €0.35 |
| Low | €0.05 |
| Trend price | €0.30 |
| Low (excellent+) | €0.10 |
| Reverse holo low | €0.05 |
| reverseHoloAvg1 | €0.45 |
| Reverse holo 7-day | €0.61 |
| reverseHoloSell | €0.63 |
| averageSellPrice | €0.30 |
| Reverse holo 30-day | €0.75 |
| Reverse holo trend | €0.62 |
Frequently asked
How can I tell if my Gastrodon is real?
Gastrodon is not on our list of commonly-counterfeited cards, but counterfeits exist across every set. Check the back-light test (real cards have a black inner layer that blocks light; counterfeits glow through), the rosette dot pattern on the back under magnification, font weight and kerning on the card name, and the holofoil pattern if applicable. For high-value copies we recommend submitting to a professional grader (PSA, BGS, CGC) for tamper-evident authentication.
What is Gastrodon worth?
As of the latest data, the current market reference price for Gastrodon is $0.50; there are no active listings on The Game Traders right now. Actual value depends on condition, grading, edition and printing variant — graded high-condition copies (PSA 9–10) trade at a substantial premium over raw copies.
What set is Gastrodon from?
Gastrodon is from the Pokémon set "Steam Siege" in the XY series, released in 2016.
What rarity is Gastrodon?
Gastrodon is a Rare card in the Steam Siege set.
Other Gastrodon printings
Same Pokémon card across other sets and rarities.
