Professor Oak's New Theory #15 (Japanese) price

Name: Professor Oak's New Theory #15 (Japanese, Steelix Constructed Standard Deck)
Brand: Pokémon
SKU: JP-L2-G24080-15
Price: 0.4 USD

Steelix Constructed Standard Deck15

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Market prices

from $0.40Lowest TCGplayer listing · Near Mint

€0.17Cardmarket price trend · Near Mint

–7-day change

#19 of 19Value rank in the set

Price history chartSee it in Sparkl Steelix Constructed Standard Deck master set · 19 cardsOpen in Sparkl Graded prices · PSA, CGC, BGSIn Sparkl Pro

Professor Oak's New Theory (#15) is a card from the Japanese Pokémon set Steelix Constructed Standard Deck. Near Mint, it has a market price of about €0.17 on Cardmarket; the lowest TCGplayer listing is from $0.40 (updated November 2, 2026).

Professor Oak's New Theory #15 prices by finish

Finish	TCGplayer	Cardmarket
1st Edition	from $0.40	€0.17

Near Mint prices: lowest TCGplayer listing, Cardmarket price trend, updated November 2, 2026. “From” marks a lowest listing: an asking price, not a market value.

Price charts, graded prices from PSA, CGC, BGS, SGC, TAG and ACE, PSA population counts and recent sold listings are in Sparkl Pro.

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About this card

Set: Steelix Constructed Standard Deck (Japanese)
Number: 15
Finishes: 1st Edition
Released: February 11, 2010
Print language: Japanese

How this page is made: Near Mint prices from TCGplayer and Cardmarket, refreshed daily; ranks, medians and comparisons are computed by Sparkl from those prices.

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