Number S39: Utopia the Lightning X LIGHT Rank 5 [ Warrior / XyzEffect ] ATK 2500 DEF 2000 3 Level 5 LIGHT monsters You can also Xyz Summon this card by using a Rank 4 "Utopia" monster you control as material
Weakness: Lightning (x2) Resistance: none Retreat: 1 Mimikyu ex - Psychic - HP190 Basic Pokemon [P] Void Return: 30 damage
The current system is more arbitrary, and a lot of Rule 0 talks end up in the controversial "My deck is a 7" statement, which doesn't help determine what decks can do, what their win cons are, and how power-crept a given deck truly is
If you have that many monsters, you were probably going to win anyways
As I've said (and will probably say again) these cards and their value can only appreciate as time goes by, just like everything else
Prior to that, the most valuable Pokmon Card was a first-edition shadowless holographic Charizard