Professor's Research SWSH178

Supporter card from SWSH Black Star Promos · released Nov 15, 2019

~$0.58 Normal

as of Oct 30, 2026 · Buy links are affiliate links.

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Professor's Research SWSH178 SWSH Black Star Promos Pokemon card

Professor's Research is a Promo Supporter card, number SWSH178 in SWSH Black Star Promos (released Nov 15, 2019), illustrated by Yusuke Kozaki. Its TCGplayer market price was ~$0.58 for the normal finish on Oct 30, 2026. Between Oct 1 and Oct 30, 2026, its Normal TCGplayer market price was about the same, near ~$0.58.

Prices by finish

Finish	PriceMarket price	Low	Mid	Buy
Normal	~$0.58	~$0.30	~$0.64	Buy Normal on TCGplayer (opens in a new tab)Search eBaySearch AmazonCardNexus

TCGplayer market prices per finish, as of Oct 30, 2026. A guide, not an appraisal; condition and grading change real-world value. Buy links are affiliate links.

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Card details

Set	SWSH Black Star Promos
Number	SWSH178
Rarity	Promo
Artist	Yusuke Kozaki
Regulation mark	D
Format legality	ExpandedNot in Standard: regulation mark D rotated out on Apr 10, 2026. A reprint with a legal mark can still be played.
Finishes	Normal

What the codes mean

Card numberSWSH178A Black Star Promo number. Promos are numbered in their own series, with no set total.
Set symbolThe small SWSH Black Star Promos symbol identifies the set. Cards from before Scarlet & Violet print a symbol instead of a set code.
Regulation markDStandard legality goes by this letter, and D is out of Standard: since Apr 10, 2026 only H and later are legal, unless the card has a reprint with a legal mark.
RarityPromo: the Black Star Promo symbol.
Illustrator“Illus. Yusuke Kozaki” names the artist who made the art.