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- Professor Oak's New Theory
Pokémon (Japan) · 4 printings · 1 priced
Professor Oak's New Theory
Price range · Sep 2, 2026
$1.00 – $1.00
most expensive: L1: HeartGold Collection #068/070
L1: HeartGold Collection · #068/070$1.00
L1: HeartGold Collection · most expensive printing1 year
$0.98$0.99$1.01$1.02
$1.00Jun 13Jul 10Aug 6Sep 2
TCGplayer market price · via tcgcsvtcgrate.com
Every printing
most expensive first
| Printing | Market | 7d | 30 days | |
|---|---|---|---|---|
 |
Professor Oak's New TheoryL1: HeartGold Collection · #068/070 · Uncommon | $1.00 | 0.0% | |
 |
Professor Oak's New TheoryL2: Steelix Constructed Standard Deck · #015/019 · None | — | — | |
 |
Professor Oak's New TheoryL2: Tyranitar Constructed Standard Deck · #015/019 · None | — | — | |
 |
Professor Oak's New Theory (Mirror Holofoil)L1: HeartGold Collection · #068/070 · Uncommon | — | — |
Why Professor Oak's New Theory has 4 prices
Each printing is a different physical card — a different set, number, often a different frame or foil treatment — and the market prices them separately. The range above runs from the cheapest priced printing to the most expensive one; the chart follows the most expensive. Open any row to see that printing's own history, every foil variant, and where it costs less.