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
The Commander Lae'zel, Vlaakith's Champion is a great resource for any deck focused on counters
Swarmyard can regenerate a Rat
Instead of a common, a Special Guests card or card from The List may be found in Play Boosters
In the past, decks could use either Blood Moon or Harbinger of the Seas to effectively remove opposing Urzas Sagas by removing their abilities
Rusher ST13-011-portgasdace also adds to that mid-game pressure once you've dropped to two life cards, putting a 7,000 Power attacker on the field can be a nightmare for many decks