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  4. Professor Oak's New Theory

Pokémon · 3 printings · 3 priced

Professor Oak's New Theory

Price range · Sep 2, 2026
$3.48 – $49.95
most expensive: League & Championship Cards #101/123
League & Championship Cards · #101/123$49.95
HeartGold SoulSilver · #101/123$6.92
Call of Legends · #83/95$3.48
All printings Price guide Top cards Game
League & Championship Cards · most expensive printing1 year
$10.78$25.07$39.36$53.65
$49.95
Sep 2Dec 31May 3Sep 2
TCGplayer market price · via tcgcsvtcgrate.com
Printings
3
Priced
3
Cheapest
$3.48
Most expensive
$49.95

Every printing

most expensive first
0.0% 7d Professor Oak's New Theory - 101/123 (League Promo) League & Championship Cards · #101/123 $49.95 0.0% 7d Professor Oak's New Theory HeartGold SoulSilver · #101/123 $6.92 +0.6% 7d Professor Oak's New Theory Call of Legends · #83/95 $3.48
PrintingReleasedMarket7d30d1y30 days
Professor Oak's New Theory - 101/123 (League Promo)League & Championship Cards · #101/123 · Promo Jun 1, 2016 $49.95 0.0% 0.0% +284.2%
Professor Oak's New TheoryHeartGold SoulSilver · #101/123 · Uncommon Feb 10, 2010 $6.92 0.0% 0.0% +54.1%
Professor Oak's New TheoryCall of Legends · #83/95 · Uncommon Feb 9, 2011 $3.48 +0.6% +4.2% +10.8%

Why Professor Oak's New Theory has 3 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.