About Tentacool
Tentacool from the Undone Seal set (#20) is a Pokemon trading card released in 2004. Current fair market values for Tentacool are PSA 10: $70, PSA 9: $0.99, Raw: $1.16. The most recent PSA 10 sale was $70 on May 20, 2026. A raw (ungraded) copy last sold for $1.16 on March 10, 2026. CardIndex has tracked 3 total sales across all grades for this card.
