Professor Oak's New Theory Japanese Pokémon Card Value

3 Japanese printings catalogued. US market sales are rare for these, so prices may show as "—". All 3 cards are listed below.

Prices last updated August 2, 2026

Professor Oak's New Theory – HeartGold Collection (068)

Set: HeartGold Collection

No recent sales data for this printing.

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Professor Oak's New Theory – Tyranitar Constructed Standard Deck (015)

Set: Tyranitar Constructed Standard Deck

No recent sales data for this printing.

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Professor Oak's New Theory – Steelix Constructed Standard Deck (015)

Set: Steelix Constructed Standard Deck

No recent sales data for this printing.

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