Genetic Apex, the first Pokmon TCG Pocket set and the only one currently available, is labelled as A1 in the game, so A2 is presumably the second full set
Or are some more common than others
The enchanted version has Ursula singing into a sea shell microphone, with Flotsam and Jetsam twirling around her
But if you play your cards right (literally), you can essentially pull off a six-card draw for the price of one Trainer
They feel very thin and a bit glossy, and i think the glossy nature of them is what is making me think they are fake, because i remember that being an issue when i was a kid
Other deck archetypes will benefit too, but these are two that will receive the biggest uplift to bring them back into the meta.