Holofile
Ninja Boy 103/114 Steam Siege

STEAM SIEGE

Ninja Boy 103/114

Ninja Boy is card 103/114 in Steam Siege (STS), a XY set, released on August 3, 2016. It’s an Uncommon illustrated by Megumi Mizutani. It comes in 4 printings: Normal, Reverse Holo, League Stamp and Staff Stamp. A Near Mint Normal copy has a market price of $0.14 as of October 17, 2026, unchanged over 30 days.

Market price · Near Mint · Normal

$0.140% in 30 days

Jul 19, 2026 · $0.14Low $0.13 · High $0.14Oct 17, 2026 · $0.14

As of October 17, 2026. Prices are estimates from third-party market data and are not offers to buy or sell. Holo10 in the Holofile app adds 6-month, 1-year and all-time charts.

Number
103/114
Rarity
Uncommon
Released
August 3, 2016

Printings and prices

Normal

Ungraded
ConditionMarket30 days
Near Mint$0.140%
Lightly Played$0.13+8%
Moderately Played$0.09+13%
Heavily Played$0.160%
Damaged$0.08+33%

Reverse Holo

Ungraded
ConditionMarket30 days
Near Mint$0.42+5%
Lightly Played$0.350%
Moderately Played$0.23−21%
Heavily Played$0.320%
Graded
GradeMarket30 days
PSA 10$150.000%
CGC 10$9.000%

League Stamp

Ungraded
ConditionMarket30 days
Near Mint$2.11+14%
Lightly Played$1.44+13%
Moderately Played$0.930%
Heavily Played$0.750%
Damaged$0.760%

Staff Stamp

Ungraded
ConditionMarket30 days
Near Mint$39.990%
Lightly Played$29.980%
Moderately Played$16.73+33%
Heavily Played$13.00+4%

Market prices as of October 17, 2026: in US dollars unless marked. Prices are estimates from third-party market data and are not offers to buy or sell.