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PSA 10: PriceCharting; refreshed Sep 10, 2026
GemDelta shows Thundurus EX (Promo #BW81) at $4.58 market price (TCGplayer market). Its Delta multiple is 22.6x.
A PSA 10 Thundurus EX (Promo #BW81) is currently shown at $71.82. GemDelta labels this as an unverified PriceCharting guide fallback rather than verified recent sales.