Professor Oak's New Theory
Steelix Constructed Standard Deck · #15/19 · None · 2010JPN
Price history
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Graded population census · updated 2026-09-21
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Auction sale integrity
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How much is Professor Oak's New Theory #15/19 worth?
As of November 9, 2026, Professor Oak's New Theory #15/19 from Steelix Constructed Standard Deck sells for around $0.40 in raw, ungraded condition.
We update this valuation every night from live market data and verify it against real completed sales — see the chart above for how Professor Oak's New Theory has moved over time.
