One of the rarest Pokemon cards in a poto?

You're asking about a "poto" and a rare Pokemon card. I think you might mean "portfolio". It's difficult to say definitively what the rarest Pokemon card in a portfolio would be without knowing what's actually in it.

Here's why:

* Rarity is subjective: What's considered "rare" depends on the specific card, its condition, and the market at a given time.

* Portfolios vary: Some portfolios could contain cards from a specific era, while others have a wider range of sets and editions.

To figure out the rarest card in your portfolio, you'll need to:

1. Identify the cards: List out every card and its set/edition.

2. Research their rarity: Use online resources like PokeBeach, TCGPlayer, or PSA to determine how rare each card is.

3. Consider condition: A pristine card in excellent condition will be rarer and more valuable than a damaged one.

Some examples of extremely rare Pokemon cards include:

* No Rarity Symbol Pikachu (Japanese, 1st Edition): This card has no rarity symbol, making it incredibly rare.

* Pikachu Illustrator (Japanese): This card was given to winners of a Japanese Pokemon illustration contest and is considered one of the rarest cards ever printed.

* Gold Star Espeon (Japanese): This card is highly sought after due to its unique gold star symbol.

Remember, the rarest card in your portfolio might not be worth a huge amount of money, but it could still be a valuable and cherished piece of your Pokemon collection!