* Rarity varies greatly: Pokémon cards have different rarities, from common to ultra-rare. This is true for all language versions, including French.
* Specific card matters: The rarity of a card depends on its specific set, edition, and even condition. A common French card from a recent set is likely not rare, but a rare French card from an older set could be highly valuable.
* Demand is key: Rarity isn't the only factor influencing value. Demand for a specific card, especially in a particular language, can drive up prices.
To determine if a French Pokémon card is rare, you'll need to provide more information:
* What set is the card from?
* What is the card's name?
* What is the card's rarity (common, uncommon, rare, etc.)?
* What is the card's condition (mint, near mint, played, etc.)?
Once you provide this information, you can search online resources like eBay or TCGplayer to get an idea of the card's rarity and value.