The goal is to reduce the opponent's "Hit Points" to zero by attacking with different Pokmon
For example, I saw a store purchase the Umbreon VMAX CSR for quite a lot of money under the mistaken impression that it would be worth as much as the Sword & Shield Evolving Skies Umbreon VMAX
If you were already playing an artifact heavy reanimator deck in these colors, Jan Jansen, Chaos Crafter is also right at home in those builds too, but Ill be honest, I have yet to see a deck like the one this card enables
Notably, there is a relevant price difference between the foil and non-foil and foil iterations of this card, as the foil versions seem to be going for about $50-60 right now
A few Double Exposure texture foil Legendaries like Kaito , Tyvar , and Niko were valued from $60 to $70, except Valgavoth
Because they are a frequent theft target, many stores keep them in a locked case or behind the electronics counter, so you may need an employee to grab them for you