Generally, though it could vary slightly depending on the expansion, the Set Booster would contain twelve cards, comprised of 1 to 5 cards at Rare or higher, then a selection of Commons, Uncommons and a bonus 2 non-playable cards too
Japanese booster boxes of Pokemon 151 are particularly valuable due to superior print quality, exclusive illustration rares, and limited availability outside Japan
Its toughness is always four, meaning it's capped, but it's also guaranteed to survive even if someone sticks a Sire of InsanitySire of Insanity
Something noteworthy and new for this set: The press release mentions that 2 sets of premium parallel cards will appear in Scarlet & Violet Prismatic Evolutions, featuring either a Pok Ball or Master Ball etched in the card background
As the newly released Kamigawa: Neon Dynasty and its corresponding Commander decks have added over 40 new Commanders to the format, we're going to see which are the best the set has to offer