Professor's Research

SWSH Black Star Promos · #SWSH178 · Vertical Line Holo

IDX$0.43

MONARK BLEND

TCGPLAYER · THIS VARIANT

MKT$0.43

LOW/MED/HIGH$0.13 / $0.49 / $19.98

Trend▼ 8.5% · 7d

EBAY SOLD · ALL VARIANTS

MED$2.49

RANGE$0.99–$9.99

STALE · AS OF 2026-07-23

17 SALES · 88D · AS OF 2026-07-23

AS OF 2026-09-01

where to buy

buy on tcgplayer find on ebay

affiliate links — monark may earn a commission

compare finish prices · 2compare ▾

Non-holo$0.59$0.40–$1.08—· 0.0% · 7d
Vertical Line Holo$0.43$0.43–$0.50-27%▼ 8.5% · 7d

tcgplayer market · price · range · vs base · 7-day move

card data

RARITY: Promo
TYPE: Trainer · Supporter
ILLUS: Yusuke Kozaki
REG: D

price summary

Professor's Research (Vertical Line Holo) from SWSH Black Star Promos #SWSH178 is worth $0.43 — the MONARK BLEND consensus as of 2026-09-01. TCGplayer market for this finish is $0.43 as of 2026-09-01; eBay sold median across all finishes of the card is $2.49 from 17 sales in the 88-day window to 2026-07-23. monark prices each finish separately. This card has 2 tracked finishes: Non-holo · Vertical Line Holo.