If I asked this trivia question a year from now, what would the answer be
Every attempt Ive made at actually purchasing cards has shown that the set is sold out everywhere, and they dont seem to be printing any new ones
Not because they aren't strong enough to keep up, but because the wording on the cards directly conflicts with how the game is played in modern times

Other lots in the sale certified by CGC Trading Cards include: a set of 62 Pokmon 1999 Fossil Set 1st Edition cards graded CGC 6.5 to 9.5 (lot 1980) with an estimate of $2,000 to $5,000 a set of 64 Pokmon 1999 Jungle Set 1st Edition graded CGC 5 to 8.5 (lot 1979) with an estimate of $2,000 to $5,000 a Dark Charizard Pokmon 2000 Team Rocket 1st Edition 4/82 Holo graded CGC 9 (lot 2021) with an estimate of $1,000 to $2,000 a Charizard Pokmon 2000 Base Set 2 4/130 Holo graded CGC 8.5 (lot 2019) with an estimate of $700 to $1,000 a Mewtwo Pokmon 1999 Base Set 1st Edition 10/102 Holo graded CGC 7.5 (lot 1992) with an estimate of $700 to $1,000 a Shining Tyranitar Pokmon 2002 Neo Destiny Unlimited 113/105, graded CGC 7.5 (lot 2035) with an estimate of $400 to $700 a Charizard Pokmon 1999 Base Set Unlimited 4/102 Holo graded CGC 7 (lot 1999) with an estimate of $400 to $700 a Charizard Pokmon 1999 Base Set Unlimited 4/102 Holo graded CGC 7.5 (lot 1998) with an estimate of $400 to $700 a Blastoise Pokmon 1999 Base Set Unlimited 2/102 Holo graded CGC 8.5 (lot 1997) with an estimate of $400 to $700 a Savannah Magic: The Gathering 1994 Revised Edition Rare graded CGC 8.5 (lot 1975) with an estimate of $400 to $700 All estimates are provided by the auction house.

While having a few of these in your deck can be awesome, just make sure you aren't running too many colorless lands or you might have trouble consistently casting your spells