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Professor's Research SWSH178 SWSH Black Star Promos

SWSH BLACK STAR PROMOS

Professor's Research SWSH178

Professor's Research is card SWSH178 in SWSH Black Star Promos (PR-SW), a Sword & Shield set, released on November 15, 2019. It’s a Promo illustrated by Yusuke Kozaki. It comes in 2 printings: Normal and Holo. A Near Mint Normal copy has a market price of $0.57 as of October 17, 2026, down 12% over 30 days.

Market price · Near Mint · Normal

$0.57−12% in 30 days

Jul 19, 2026 · $0.69Low $0.57 · High $0.69Oct 17, 2026 · $0.57

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
SWSH178
Rarity
Promo
Released
November 15, 2019

Printings and prices

Normal

Ungraded
ConditionMarket30 days
Near Mint$0.57−12%
Lightly Played$0.58+2%
Moderately Played$0.670%
Heavily Played$0.500%
Graded
GradeMarket30 days
PSA 9$2.250%
PSA 7$8.000%

Holo

Ungraded
ConditionMarket30 days
Near Mint$0.43+2%
Lightly Played$0.47+7%
Moderately Played$0.300%
Heavily Played$0.290%
Damaged$0.23+77%

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.