#103

Steam Siege · English

Ninja Boy

✦ Uncommon

✨ Mavi AI quick take

This Uncommon Trainer card comes from Steam Siege. Choose 1 of your Basic Pokémon in play. Search your deck for a Basic Pokémon and switch it with that Pokémon. (Any attached cards, damage counters, Special Conditions, turns in play, and any other effects remain on the new Pokémon.) Shuffle the first Pokémon into your deck. Generated from the verified card fields shown on this page.

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Price snapshot

Cardmarket guide · EUR
Updated 23 Jul 2026

Trend price€0.08

From€0.02

Average€0.10

Holo trend€0.46

Finish	Average	Low	Trend	1 day	7 days	30 days
Standard	€0.10	€0.02	€0.08	€0.10	€0.04	€0.10
Holo / reverse	€0.60	€0.05	€0.46	€0.80	€0.51	€0.40

Today

€0.10

7-day avg

€0.04

30-day avg

€0.10

Trend

€0.08

Guide prices can change and may differ by condition, language, seller, grading, and delivery cost. Always check the live listing with a parent or guardian before buying.

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Card facts

Useful details at a glance

SetSteam Siege

Card number103 / 114

RarityUncommon

IllustratorMegumi Mizutani

CategoryTrainer

Type—

WeaknessNone listed

ResistanceNone listed

Retreat cost—

Released3 Aug 2016

Stage—

Evolves from—

Printed levelNot printed on this card

Weight—

Card subtypeSupporter

Available finishesStandard / not specified

Regulation markNot used / not listed

Pokédex number—

Cardmarket product291481

Metacard ID223327

TCGplayer ID121227

Image filename223327_Ninja-Boy.webp

Image pathimages/223327_Ninja-Boy.webp

Image sourceCached

Abilities & effects

Extra rules and useful play information

Supporter

Choose 1 of your Basic Pokémon in play. Search your deck for a Basic Pokémon and switch it with that Pokémon. (Any attached cards, damage counters, Special Conditions, turns in play, and any other effects remain on the new Pokémon.) Shuffle the first Pokémon into your deck.

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