Usually, you are not going to include more than one of any card, so you can have a full 360 unique cards, and then after the draft, you can add basic lands (which does include Snow-Covered basics as well as Wastes)
The top chase cards are a damn sight more expensive than other Scarlet and Violet era expansions, but it's far less of a risk if you're not bothered about opening booster packs
XY: Flashfire was the 60th expansion of the Pokmon TCG
The Phyrexian invasion front may stretch to infinity across the multiverse, but my word count cannot
What is inside a collector booster Collector booster contents vary by set, but the standard composition is around 15 cards per pack, including: 5 or more cards of rare or mythic rare rarity 9 to 11 traditional foil cards Extended art, borderless, or showcase frame cards At least 1 special treatment card per pack Foil basic lands with premium treatments Specific sets add their own exclusive treatments