It all stems back from the very first set, the Base Set, originally printed in English in 1999 - the big red lizard had the most hit points (HP) at 120, making it the toughest Pocket Monster to take down, the highest damaging attack (Fire Spin for a whopping 100 damage) making it the hardest hitting Pokmon without a drawback (were looking at you Chansey with your Double-Edge attack) and had the best resistance, it resisted fighting types by 30 damage, it also has an alluring and unique Pokmon Power which essentially meant any deck could run a Charizard, if you had one
Snorlax VMAX Strength: The Snorlax VMAX 206/202 from the Sword & Shield set is a giant on the battlefield
Animation World Magazine
These card sleeve designs are also available as actual posters, if you want to turn your room into a travel agency for a selection of fictitious destinations
Revised has a solid edge, which means its one (black) line
This format is basically Standard with a larger card pool and different banlist, which is great for players who have cards from older sets but may not be the best place to start for new players