Pokémon sets › Steam Siege › Ninja Boy [League-Cup]
![Steam Siege Ninja Boy [League-Cup] Pokémon card](https://pub-4919690d36064f94806d666a71d998a0.r2.dev/Steam%20Siege/ninja-boy-league-cup-103.jpg)
Ninja Boy [League-Cup] #103
Ungraded
£2.89
PSA 10
—
Guide prices in GBP for the UK market, updated 21 June 2026. Estimates for collection tracking — not an appraisal or a quote.
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