Question 1

What is the current market value of Cornerstone Mask Ogerpon ex #199?

Accepted Answer

For Cornerstone Mask Ogerpon ex in Twilight Masquerade, the current reference price is $3.33. Week-over-week movement is lower by 9.5%. Versus its 30-day baseline of $4.03, this card is now 17.4% lower. In the past 90 days, observed prices ranged from $3.24 to $4.64 (42% spread), a moderate-volatility profile. This version is categorized as Ultra Rare.

Question 2

Is Cornerstone Mask Ogerpon ex #199 a good investment or collectible?

Accepted Answer

Pricing context for collectors: Recent pricing has softened by 9.5% over 7 days, with the card now 28% below its 90-day high. With a 42% 90-day spread ($3.24-$4.64), this card currently tracks as moderate-volatility. Versus the 30-day average ($4.03), the card is trading 17.4% lower. No consistent graded benchmark is available in this snapshot, so condition-adjusted pricing should be reviewed with active listings.

Question 3

What is Cornerstone Mask Ogerpon ex #199 and what makes it special?

Accepted Answer

In 2024, Twilight Masquerade introduced this print of Cornerstone Mask Ogerpon ex. Its card type is Pokémon. The rarity label is Ultra Rare. Printed HP is 210. Energy typing is Fighting. It carries a Basic, Tera, and ex subtype designation. The card text reads: As long as this Pokémon is on your Bench, prevent all damage done to this Pokémon by attacks (both yours and your opponent's). Pokémon ex rule: When your Pokémon ex is Knocked Out, your opponent takes 2 Prize cards. Tera: As long as this Pokémon is on your Bench, prevent all damage done to this Pokémon by attacks (both yours and your opponent's). This card has the following ability: "Cornerstone Stance". Attack line includes "Demolish". Grass weakness applies to this print. This rarity tier generally sits in premium chase segments relative to base rarities.

Question 4

What are the alternative Cornerstone cards available?

Accepted Answer

Cornerstone Mask Ogerpon ex sits within a broader pool of Cornerstone variants that can be compared by set, rarity, and price. Comparable entries in this snapshot: 4 cards, 2 distinct sets. In this sample, pricing ranges between $1.05 and $15.79 (1404% total span). Relative to the alternative average ($7.70), this card is -57%. Notable alternatives include Cornerstone Mask Ogerpon ex #112 (Twilight Masquerade) at $1.05, Cornerstone Mask Ogerpon ex #215 (Twilight Masquerade) at $12.80, Cornerstone Mask Ogerpon ex #160 (Prismatic Evolutions) at $15.79, and Cornerstone Mask Ogerpon ex #58 (Prismatic Evolutions) at $1.15.

Question 5

What set is Cornerstone Mask Ogerpon ex #199 from, and when was it released?

Accepted Answer

Twilight Masquerade was released in 2024. Series classification for this set is Scarlet & Violet. Set size is 226 cards, which categorizes Twilight Masquerade as large. As of 2026, the set is 2 years old and still in a recent release window. Within this set, Cornerstone Mask Ogerpon ex is card number 199 with a Ultra Rare designation.

Cornerstone Mask Ogerpon ex #199

Price history

All Cornerstone Mask Ogerpon ex cards

Card details

Attacks