how do you tell first edition pokemon cards can I if this is or not? : r/PokemonTCG Rarest and Most Valuable First

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The autograph was graded separately from the card, with Ishiharas signature receiving a PSA 9 rating, while the card received a 7

While it's possible that I'm underrating Kinsbaile Cavalier, my guess is that it's more of a fun card for casual Knight decks than something that will be a part of more competitive Knight decks (although I do think Knights will probably be a solid aggro option in Historic)

What is "weighing"

It's important to keep in mind that while 151's Booster Bundle is technically the cheapest set on this list, it only includes six packs, while all the other Booster Boxes listed include 36 packs

You're likely to get seven Ultra Rares or above in almost every Pokmon TCG booster box, yes