Professor Oak's New Theory
101/123
Price
€0.21Cardmarket trend, regular print
+600.0 % vs. 7 daysWith a Cardmarket trend of €0.21 this card is number 109 of 121 priced cards in HeartGold SoulSilver.
The chart follows the Cardmarket product (the plain and the holo/reverse series), not one single print.
- Lowest offer
- €0.02
- 1-day avg.
- €0.06
- 7-day avg.
- €0.23
- 30-day avg.
- €0.20
Cardmarket trend as of 12 Oct 2026, not a binding valuation. See on Cardmarket ↗(opens in a new tab)
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Card text & stats
- Retreat cost
- 0
Details
- Released
- 10 Feb 2010
- Category
- Trainer
- Regulation mark
- –
- Legal
- –
Professor Oak's New Theory 101/123 is from the set HeartGold SoulSilver (HeartGold & SoulSilver, released 10 Feb 2010). Rarity: Uncommon. Its Cardmarket price trend is €0.21 as of 12 Oct 2026. This is a market guide from regular snapshots, not a guaranteed sale price.