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Pokémon (Japan) · 4 printings · 1 priced

Professor Oak's New Theory card prices

Professor Oak's New Theory card prices across all 4 printings we track, from $1.00 to $1.00 — the version you hold decides the value, not the name.

Price range · Oct 19, 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
$1.00
Jun 13Jul 25Sep 6Oct 19
TCGplayer market price · via tcgcsvtcgrate.com
Printings
4
Priced
1
Cheapest
$1.00
Most expensive
$1.00

Every printing

most expensive first
PrintingReleasedMarket7d30d1y30 days
Professor Oak's New Theory (068/070), HeartGold Collection — Pokémon JP card price Professor Oak's New TheoryL1: HeartGold Collection · #068/070 · Uncommon Oct 9, 2009 $1.00 0.0% 0.0% —
Professor Oak's New Theory (015/019), Steelix Constructed Standard Deck — Pokémon JP card price Professor Oak's New TheoryL2: Steelix Constructed Standard Deck · #015/019 · None Feb 11, 2010 — — — —
Professor Oak's New Theory (015/019), Tyranitar Constructed Standard Deck — Pokémon JP card price Professor Oak's New TheoryL2: Tyranitar Constructed Standard Deck · #015/019 · None Feb 11, 2010 — — — —
Professor Oak's New Theory (Mirror Holofoil) (068/070), HeartGold Collection — Pokémon JP card price Professor Oak's New Theory (Mirror Holofoil)L1: HeartGold Collection · #068/070 · Uncommon Oct 9, 2009 — — — —

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.