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: $35.02, PSA 9: $10.91, PSA 8: $11.50, Raw: $5.49. The most recent PSA 10 sale was $44.28 on June 21, 2026, with 29 sales tracked in the last 30 days. The most recent PSA 9 sale was $11 on April 28, 2026. A raw (ungraded) copy last sold for $5.53 on June 22, 2026. CardIndex has tracked 132 total sales across all grades for this card. There are currently 73 active listings for Cornerstone Mask Ogerpon Ex.
