Cornerstone Mask Ogerpon ex from the Twilight Masquerade set (#112) is a Pokemon trading card released in 2024. It has a rarity of Double Rare. Current fair market values for Cornerstone Mask Ogerpon ex are PSA 10: $30, PSA 9: $10.98, PSA 8: $4.50, Raw: $0.80. The most recent PSA 10 sale was $30 on July 8, 2026, with 26 sales tracked in the last 30 days. The most recent PSA 9 sale was $10.98 on April 4, 2025. A raw (ungraded) copy last sold for $0.80 on August 23, 2026. CardIndex has tracked 295 total sales across all grades for this card. There are currently 235 active listings for Cornerstone Mask Ogerpon ex.
