Prices updated 4/5/2026
Ninja Boy
Steam Siege · #103
Set
Steam Siege
Series
XY
Rarity
Uncommon
Number
103
Supertype
Trainer
Artist
Megumi Mizutani
Subtypes
Supporter
Prices & Marketplace
TCGPlayer (NM market)
referenceNormal
$0.12
Reverse Holofoil
low $0.14$0.36
Buy on eBay
active asks · 6d agoeBayPSA 9
Lowest $50.00
1 active listing
eBayCGC 9
Lowest $100
1 active listing
eBayRaw / Ungraded
Lowest $0.70· Median $1.95
198 active listings·+483% vs TCG
View all 560 listings on eBay →Recent sales
by gradeReal sold prices — what buyers actually paid, not an estimate.
Sold-price data from Silph Co Analytics. Outliers excluded.
Price History
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