There's no disputing that this is one of the most difficult cards to find raw in good condition, as only a few NM copies have sold, both reaching the $380 mark to set the standard for the other conditions to fall under.
These Oil counters do different things depending on the card, but if youre in those colors, you should be looking to spread Oil counters to as many of your cards as possible to maximise the effect they have on the game
PSA 10 grades can increase value by 200-400% for high-demand Snorlax variants
Still, until cards are officially revealed in English, they should be treated as rough sketches rather than definitive translations
In the three years since the One Piece Card Game dropped, Bandai has already released nearly a dozen mainline sets, several supplement products, and as many as 20 decks split between Starter and Ultimate designs