It depends on whether you collect for art, play in tournaments, invest for value, or simply want the most cards for your money
While just enchanting things for value is a fine, fun way to play Estrid, the Masked, things can get out of control quickly if you start playing cards like Overgrowth and Fertile Ground so that Estrid's +2 acts like a massive ramp spell, and then The Chain Veil (perhaps enchanted with a Mask aura thanks to Estrid's 1) give you an easy way to activate your Estrid, the Masked an infinite number of times, potentially making infinite mana by untapping your lands and eventually winning with her Replenish ultimate
Some of them are remarkably accurate for this day and age: Since the guide came out near the end of 1999 (Fossil was released in Oct 1999), it doesnt have prices for any of the english Fossil cards: The guide also included images + translations for all Japanese cards printed up to that point, including Southern Island, and sets like Gym Heroes
You'll also find a ready-to-play promo card (featuring Rillaboom, Cinderace, or Inteleon), 3 Crown Zenith booster packs, and a code card for the Pokemon TCG Live
Not only were you able to watch the auction live, but the card itself was pulled from a collector booster during the now-former owner's stream
