(The exact restrictions are more specific, but thats the general idea.) Other formats, such as Modern and Legacy, dont rotate at all, meaning the pool of cards that you can choose from grows with each new set release
Im not wild about Patch Up, but when you have two Lagrella, the Magpie youre happy to run Patches as defacto third and fourth copies of the legend
Pokemon: Sword and Shield may have introduced the frankly grotesque Eternamax Eternatus, but back in my day the strongest Pokemon was always Mewtwo
Choose your moment to evolve a Pokmon carefully, as this will also remove any status conditions, and also use Bosss Orders, or similar Trainer cards, to stop your opponents active Pokmon from trapping you in a loop of, say, paralysis, which can be difficult to escape from
Paldea Evolved - Pokemon Card List and Prices