Card pricesSteam Siege
Ninja Boy 103/114 — Steam Siege
Ninja Boy is card 103/114 from Steam Siege (XY, 2016), a Uncommon Trainer card illustrated by Megumi Mizutani.
Ninja Boy price
Prices: TCGplayer market (US, $) and Cardmarket trend (EU, €) via TCGdex open data, each shown with the date it was last updated. Indicative only — UK sold prices on eBay are often the best guide.
Card details
- Set
- Steam Siege
- Number
- 103/114
- Rarity
- Uncommon
- Card type
- Trainer · Supporter
- Illustrator
- Megumi Mizutani
- Released
- 3 August 2016
About this card
Ninja Boy 103/114 is card 103 in Steam Siege (114 numbered cards, plus 2 secret rares). It's one of 30 Uncommon cards in the set — 26% of 116. It's the only English card named “Ninja Boy”. Megumi Mizutani illustrated 3 cards in Steam Siege and 134 English cards in total.
It isn't legal in the 2026–27 Standard format, so demand comes mainly from collectors.
More: full Steam Siege list
Is Ninja Boy 103/114 worth anything?
Copies of this card currently trade at around €0.09 on Cardmarket, assuming near-mint condition. The price you'll get in the UK depends mostly on condition: check the corners, edges and surface, and whether the artwork is well centred. Damaged cards sell for much less, while professionally graded copies in top condition can sell for far more.
To be sure you have the right card, match the set symbol and the number 103/114 printed at the bottom of your card. Then compare completed eBay UK listings — sold prices, not asking prices — for copies in similar condition.
Questions people ask
What set is Ninja Boy 103/114 from?
Steam Siege, released 3 August 2016 in the XY series. Look for the set symbol next to the number 103/114.
How rare is Ninja Boy 103/114?
It's an Uncommon — one of 30 cards at that rarity in Steam Siege.
Who illustrated Ninja Boy 103/114?
Megumi Mizutani, who has 134 English Pokémon cards credited.
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