in the case of Brilliant Stars , the set this Sylveon V is from, there were 30 Trainer Gallery cards, and Sylveon V was card number 14 of 30
For example, a hyper-rare gold card, the highest rarity in the recent Scarlet and Violet era sets, is [often] worth less than a Special Illustration Rare, the rarity below hyper-rares. She explains that some Illustration Rares (IRs) are worth more than Special Illustration Rares (SIRs), and Mega Hyper Rares (also gold cards) are now some of the most expensive cards in the modern era and are even rarer than hyper-rares were. [22] Sports card and memorabilia collector Chris Frey says that each Pokmon set will have 3 or 4 special edition cards with different art and illustrations that people chase after
"With party being a major mechanic, we really wanted to give each member of the party their own unique visual identifiers to help players recognize what was across the table from them
You can receive a common (16.7%), uncommon (58.3%), rare (16.3%), or mythic rare (2.6%) card from the main set