It comes in a set of 64, including 4 extra deck shields, so it's enough for a standard deck of 60 cards
Japan produces a steady stream of promo cards tied to events, magazine inserts (like CoroCoro), and collaborations that never leave the country
While most regular sleeves cost anywhere between $0.07 and $0.11 per sleeve, custom ones cost you about $0.25 to $0.35 per sleeve
Paired with Prince John, Greediest of All, he was holding about 12 cards in hand when it finished resolving
That's going to knock down the UPC to $119.16, but you could save another 50%
Since you assume your deck is sufficiently randomized, and that you run an average of 24 Pokmon, this means you have around an 8% chance of finding one of your Claydols first than any of your other Pokmon cards