Cards › HeartGold & SoulSilver › Professor Oak's New Theory
Professor Oak's New Theory · 101/123 · HeartGold & SoulSilver
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Professor Oak's New Theory (101/123) is a Uncommon card from HeartGold & SoulSilver, in the HeartGold & SoulSilver series, illustrated by Ken Sugimori. As of 8 November 2026, its Cardmarket trend is €0.22 and the cheapest listing is €0.02; on TCGplayer its market price is $0.72. It is the #113 most expensive of the 124 priced cards in the set.
Price by finish
| Finish | Cardmarket · trend | Cardmarket · from | TCGplayer |
|---|---|---|---|
| Regular | €0.22 | €0.02 | $0.72 |
| Reverse holo | €2.74 | €0.40 | $6.99 |
Details
- Set
- HeartGold & SoulSilver
- Number
- 101/123
- Rarity
- Uncommon
- Illustrator
- Ken Sugimori
How this page is made: euro prices are the trend published by Cardmarket and dollar prices are TCGplayer market price; they refresh every night. They are reference prices from third-party stores, not an offer. Prism is a free, unofficial app for collecting Pokémon cards.