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PSA 10: PriceCharting; refreshed Sep 10, 2026
GemDelta shows Professor Oak's New Theory (Call of Legends #83) at $3.47 market price (TCGplayer market). Its Delta multiple is 22.8x.
A PSA 10 Professor Oak's New Theory (Call of Legends #83) is currently shown at $72.00. GemDelta labels this as an unverified PriceCharting guide fallback rather than verified recent sales.
GemDelta records a 15.4% gem rate for Professor Oak's New Theory (Call of Legends #83), with 2 PSA 10 copies out of 13 total PSA grades and a 22.8x Delta. That describes the grading profile; it is not financial advice.
The Reverse Holo version of Professor Oak's New Theory (Call of Legends #83) is shown at $3.47 market price. That value is for this stored card variant, not the base printing.