Ninja Boy 103/114 Steam Siege Pokemon card

Ninja Boy #103/114

Supporter card from Steam Siege · released 2016-08-03

Ninja Boy is a Uncommon Supporter card, number 103/114 of the Steam Siege set (released 2016-08-03), illustrated by Megumi Mizutani. Its highest TCGplayer market price is ~$0.36 for the Reverse Holofoil finish, updated 2026-06-14.

Prices by finish

FinishMarket priceLowMidBuy
Normal$0.19$0.01$0.20TCGplayer ↗
Reverse Holofoil$0.36$0.15$0.40TCGplayer ↗

TCGplayer market prices per finish, updated 2026-06-14 — not appraisals. Condition and grading change real-world value.

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Card details

SetSteam Siege
Number103/114
RarityUncommon
ArtistMegumi Mizutani
Format legalityExpanded
FinishesNormal · Reverse Holofoil

Card text

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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Steam Siege price list

Card data via TCGdex and pokemontcg.io, updated 2026-06-14; prices via TCGplayer via TCGCSV, updated 2026-06-14. Not official values.