Professor Oak's New Theory
HeartGold SoulSilver · 101/123
Printings2
CL · 83/95ENCall of Legends$0.98
HS · 101/123ENHeartGold SoulSilver$0.80Viewing
Professor Oak's New Theory across sets & languages(5)
League & Championship Cards101/123$49.95- L1: HeartGold Collection068/070JP$1.99
- L1: HeartGold Collection068/070JP—
- L2: Steelix Constructed Standard Deck015/019JP—
- L2: Tyranitar Constructed Standard Deck015/019JP—
Same name, other languages or different rules text. Same-language reprints already sit in Printings above.
Professor Oak's New Theory
HeartGold SoulSilver · 101/123
$0.80-2.4%
Fair trade-in$0.60 – $0.72
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