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PSA 10: PriceCharting; refreshed Sep 10, 2026
GemDelta shows Slowking (Lost Thunder #55) at $3.04 market price (TCGplayer market). Its Delta multiple is 14.7x.
A PSA 10 Slowking (Lost Thunder #55) is currently shown at $45.00. GemDelta labels this as an unverified PriceCharting guide fallback rather than verified recent sales.
GemDelta records a 33.3% gem rate for Slowking (Lost Thunder #55), with 1 PSA 10 copy out of 3 total PSA grades and a 14.7x Delta. That describes the grading profile; it is not financial advice.