Professor Oak's New Theory
HeartGold & SoulSilver · No. 101/123
Uncommon EN Trainer
Current value
$0.71
TCGplayer Near Mint
Prices
| Variant | TCGplayer | Cardmarket |
|---|---|---|
| Normal | $0.71 Low $0.25 · High $20.00 | €0.30 |
| Reverse Holofoil | $6.99 Low $4.00 · High $62.80 | €2.74 |
TCGplayer prices are Near Mint market averages, Cardmarket prices are 30-day averages in EUR. Refreshed every 15 minutes, as of .
Details
- Rarity
- Uncommon
- Artist
- Ken Sugimori
- Number
- 101/123
- Expansion
- HeartGold & SoulSilver
- Series
- HeartGold & SoulSilver
- Subtypes
- Supporter
Price history
$0.71 -$0.04 (-5.3%)
| Date | Average |
|---|---|
| Sep 30, 2026 | $0.75 |
| Oct 1, 2026 | $0.75 |
| Oct 2, 2026 | $0.75 |
| Oct 3, 2026 | $0.75 |
| Oct 4, 2026 | $0.75 |
| Oct 5, 2026 | $0.75 |
| Oct 6, 2026 | $0.75 |
| Oct 7, 2026 | $0.75 |
| Oct 8, 2026 | $0.75 |
| Oct 9, 2026 | $0.75 |
| Oct 10, 2026 | $0.75 |
| Oct 11, 2026 | $0.75 |
| Oct 12, 2026 | $0.74 |
| Oct 13, 2026 | $0.76 |
| Oct 14, 2026 | $0.76 |
| Oct 15, 2026 | $0.74 |
| Oct 16, 2026 | $0.73 |
| Oct 17, 2026 | $0.73 |
| Oct 18, 2026 | $0.73 |
| Oct 19, 2026 | $0.73 |
| Oct 20, 2026 | $0.72 |
| Oct 21, 2026 | $0.72 |
| Oct 22, 2026 | $0.72 |
| Oct 23, 2026 | $0.71 |
| Oct 24, 2026 | $0.71 |
| Oct 25, 2026 | $0.71 |
| Oct 26, 2026 | $0.71 |
| Oct 27, 2026 | $0.71 |
| Oct 28, 2026 | $0.71 |
| Oct 29, 2026 | $0.71 |
| Oct 30, 2026 | $0.71 |
Where to buy
More from HeartGold & SoulSilver
View all 124 cards
Professor Oak's New Theory is card 101/123 of HeartGold & SoulSilver, a HeartGold & SoulSilver series English Pokémon TCG expansion. Prices and price history here come from TCGplayer and Cardmarket and refresh every 15 minutes, and you can scan and track your HeartGold & SoulSilver cards in the Arca TCG app.
Start your collection today
Download Arca free and scan your first card in seconds — English and Japanese cards, live prices, no account needed.