Cardfolio

Pokémon sets › HeartGold & SoulSilver › Professor Oak's New Theory [Reverse Holo]

HeartGold & SoulSilver Professor Oak's New Theory [Reverse Holo] Pokémon card

Professor Oak's New Theory [Reverse Holo] #101

HeartGold & SoulSilver · 2010 · Uncommon

Ungraded
£4.68
PSA 10
—

Guide prices in GBP for the UK market, updated 23 August 2026. Estimates for collection tracking — not an appraisal or a quote.

Own this card? Scan it free Track your collection

No account needed to scan — point your camera and Cardfolio values it in about a second.

More from HeartGold & SoulSilver

Professor Oak's New Theory
Professor Oak's New Theory #101
£0.95
Switch [Reverse Holo]
Switch [Reverse Holo] #102
£18.13
Switch
Switch #102
£1.97
Professor Elm's Training Method [Reverse Holo]
Professor Elm's Training Method [Reverse Holo] #100
£2.78
Professor Elm's Training Method
Professor Elm's Training Method #100
£0.33
Pokemon Reversal
Pokemon Reversal #99
£1.64
Pokemon Reversal [Reverse Holo]
Pokemon Reversal [Reverse Holo] #99
£15.38
Double Colorless Energy [Reverse Holo]
Double Colorless Energy [Reverse Holo] #103
£8.79
Double Colorless Energy
Double Colorless Energy #103
£3.85
Pokemon Communication [Reverse Holo]
Pokemon Communication [Reverse Holo] #98
£21.58
Rainbow Energy
Rainbow Energy #104
£2.22
Rainbow Energy [Reverse Holo]
Rainbow Energy [Reverse Holo] #104
£9.15