![Professor's Research [Professor Willow] SWSH178 from SWSH: Sword & Shield Promo Cards](/api/img?u=https%3A%2F%2Ftcgplayer-cdn.tcgplayer.com%2Fproduct%2F278705_in_1000x1000.jpg&w=800&v=2)
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SWSH: Sword & Shield Promo Cards / SWSH178
Professor's Research [Professor Willow]
Promo
$0.40TCGplayer market, Holofoil
7 days +2.6%30 days —90 days —
$0.40
Oct 30, 2026
- Lowest listing
- $0.14
- Mid price
- $0.48
- Highest tracked
- $0.40Oct 2026
- Cardmarket trend
- —
- Cardmarket 30-day average
- —
- In circulation
- 7.0 yrssince Nov 2019
![Professor's Research [Professor Willow] SWSH178](/api/img?u=https%3A%2F%2Ftcgplayer-cdn.tcgplayer.com%2Fproduct%2F246275_in_1000x1000.jpg&w=320&v=2)