Pokémon TCG
Professor Oak's New Theory
Steelix Constructed Standard Deck · 015 · Fixed
Current UK price · near mint
£1.15· 0.0%
As of 2026-05-23 · folio price index · last 7 days
About this card
Professor Oak's New Theory is a Fixed from Steelix Constructed Standard Deck, part of the Pokémon TCG trading card game. Track its price, watch its history, and manage your full TCG collection — across 13 games and counting — with folio. Built by collectors, for collectors.