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Reference artwork · details may differ from this copy
About This Card

Catalog entry for the 2016 Steam Siege Gastrodon trading card, card number 29, a Stage 1 Water-type Pokémon featured in the Pokémon Trading Card Game.

Gastrodon

2016 • Pokémon • Steam Siege

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Market Value
Raw/Ungraded Market: $0.60
Updated 12 days ago
Based on TCGplayer Market (reference)Check Price Guide

Market & Price History

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30-day Price History

Raw / Ungraded

TCGplayer Market (reference) · Guide Estimate evidence · captured Nov 2, 2026

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Product Overview

Description

The Steam Siege Gastrodon card, numbered 29 in the 2016 set, represents a key evolution point for collectors focused on the Shellos line within the Pokémon Trading Card Game. This Stage 1 Water-type Pokémon brings specific strategic elements to the table, appealing to players who enjoy status-based gameplay mechanics. The card was illustrated by Aya Kusube, whose artwork defines the visual identity of this release. In terms of gameplay mechanics, Gastrodon offers a dual approach to controlling the match. Its first attack, Water Sticky Shot, deals 20 damage while applying a lingering effect: during the opponent's next turn, the Defending Pokémon's attacks cost Colorless more to activate, and its Retreat Cost increases by Colorless. This makes it a disruptive force, forcing opponents to manage their resources carefully. The second attack, Water Pulse, deals 60 damage and puts the opponent's Active Pokémon to Sleep, adding another layer of control that can stall the game significantly. As a Rare rarity card, Gastrodon is sought after by those looking to complete the base set or build specialized decks. The card’s design and mechanics reflect the era's focus on status effects and resource management. Whether you are a competitive player looking to add control options to your deck or a set builder aiming to complete your Steam Siege collection, this card offers both aesthetic and functional value. Its evolution from Shellos connects it to a broader family of Pokémon, making it a versatile addition to any library.

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Product Specs

Card Details

The catalog profile below summarizes the card identity, featured subject, and notable collectible traits.

Catalog Profile

The core identity of the card within the set.

Year

2016

Series

Steam Siege

Card Number

#29

Featured Subject

The subject, team, league, and sport context tied to this card.

Featured

Gastrodon

Game

Pokémon

TCG Attributes

Rarity, print treatment, and game-specific stats for this card.

Rarity

Rare

Artist

Aya Kusube

Material

Card Stock

Language

English

HP

110

Type

Water

Stage

Stage 1

Evolves from

Shellos

Weakness

Grass ×2

Retreat cost

2

Pokédex #

423

Card Text

Abilities, attacks, oracle text, and flavor text printed on the card.

Attack: Sticky Shot (20)

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

Attack: Water Pulse (60)

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.

Pokémon and related names, images, and marks are trademarks or copyrights of The Pokémon Company, Nintendo, Creatures Inc., GAME FREAK Inc., and their affiliates. SuperCatch is an independent marketplace and is not affiliated with, endorsed by, or sponsored by them. Full attribution.

FAQ

Frequently Asked Questions

What Pokémon does Gastrodon evolve from?

Gastrodon evolves from Shellos, making it a Stage 1 Pokémon in the trading card game. Collectors often seek out the Shellos card to complete the evolution line.

What are Gastrodon's attacks in Steam Siege?

This card features two attacks: Water Sticky Shot, which increases the opponent's energy costs and retreat cost, and Water Pulse, which deals 60 damage and puts the Active Pokémon to Sleep.

Who illustrated the Steam Siege Gastrodon card?

The artwork for card number 29 in the 2016 Steam Siege set was created by Aya Kusube, whose style is distinctive to this release.

Cards Named Gastrodon

Explore cards with this name across sets and editions. Check each card’s details before choosing a version.