Professor's Research

Scarlet & Violet Black Star Promos · No. 221

Promo EN Trainer

Current value

$0.20

TCGplayer Near Mint

Prices

Variant	TCGplayer	Cardmarket
Normal	$0.20 Low $0.20 · High $0.20	€3.86

TCGplayer prices are Near Mint market averages, Cardmarket prices are 30-day averages in EUR. Refreshed every 15 minutes, as of Sep 15, 2026, 3:12 PM UTC.

Details

Rarity

Promo

Artist

Hideki Ishikawa

Number

221

Expansion

Scarlet & Violet Black Star Promos

Series

Scarlet & Violet

Subtypes

Supporter

Price history

TCGplayer Cardmarket

$0.20 -$0.03 (-13.0%)

$0.15 $0.20 $0.25 $0.30

Aug 17 Aug 26 Sep 1 Sep 8 Sep 15

Normal · TCGplayer Near Mint · last 30 days, average price by day

Date	Average
Aug 17, 2026	$0.23
Aug 18, 2026	$0.26
Aug 20, 2026	$0.24
Aug 22, 2026	$0.24
Aug 23, 2026	$0.25
Aug 25, 2026	$0.24
Aug 26, 2026	$0.24
Aug 27, 2026	$0.23
Aug 28, 2026	$0.25
Aug 29, 2026	$0.25
Aug 30, 2026	$0.24
Aug 31, 2026	$0.24
Sep 1, 2026	$0.24
Sep 2, 2026	$0.21
Sep 4, 2026	$0.25
Sep 5, 2026	$0.24
Sep 6, 2026	$0.25
Sep 7, 2026	$0.24
Sep 8, 2026	$0.24
Sep 9, 2026	$0.24
Sep 10, 2026	$0.23
Sep 11, 2026	$0.22
Sep 12, 2026	$0.21
Sep 13, 2026	$0.21
Sep 15, 2026	$0.20

7D 1M 3M 6M 1Y

Where to buy

TCGplayer Search Professor's Research on TCGplayer Cardmarket Search Professor's Research on Cardmarket eBay Search Professor's Research on eBay

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Professor's Research is card 221 of Scarlet & Violet Black Star Promos, a Scarlet & Violet series English Pokémon TCG expansion. Prices and price history here come from TCGplayer and Cardmarket and refresh every 15 minutes, and you can scan and track your Scarlet & Violet Black Star Promos cards in the Arca TCG app.