Cornerstone Mask Ogerpon Ex from the Terastal Festival ex set (#216) is a Pokemon trading card released in 2024. Current fair market values for Cornerstone Mask Ogerpon Ex are PSA 10: $27.01, PSA 9: $17.50, PSA 8: $11.50, Raw: $5. The most recent PSA 10 sale was $27.01 on July 15, 2026, with 33 sales tracked in the last 30 days. The most recent PSA 9 sale was $17.50 on June 20, 2026. A raw (ungraded) copy last sold for $5 on August 16, 2026. CardIndex has tracked 182 total sales across all grades for this card. There are currently 79 active listings for Cornerstone Mask Ogerpon Ex.
