Description, catalog fields, rules text, and how it plays—in one place.
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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. You may play only 1 Supporter card during your turn (before your attack).
Abilities, attacks, weakness & resistance
Other cards from Steam Siege
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Volcanion-EX (Holofoil)
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Gardevoir-EX (Holofoil)
Magearna-EX (Holofoil)
M Steelix-EX (Holofoil)
Steelix-EX (Holofoil)
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Steelix Spirit Link (Reverse Holofoil)
Steelix Spirit Link
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Ninja Boy (xy11-103, Reverse Holofoil) is a Supporter Trainer card from the Steam Siege expansion. It lets you choose one of your Basic Pokémon in play, search your deck for a Basic Pokémon and switch that Pokémon with the chosen one while shuffling the first Pokémon into your deck. This card is subject to the game rule that you may play only one Supporter per turn, limiting its timing in a turn.
Catalog pricing data as of 27 Apr 2026, 05:29