Sure, there are Lorcana card lists you can cross reference, but theres a much easier way to find out which card a set is from, at a glance
1 Trainer card made waves after selling for about $75,000 at a Heritage Auctions event, instantly ranking it among the most prized Pokemon TCG trophy cards ever
"Pokemon Legends: Arceus Everything We Know"
This places it among other classics such as the famous Base Set Charizard, although Imposter Professor Oak is far less famous
However, a particular focus early in the game's lifespan includes many interactions with Counter Trap Cards (primarily through the Counter Fairy series), a design choice that is still carried over or encouraged in certain themes of the Type, such as "The Agent" and "Parshath", as well as some semi-generic support cards
Since opponents will kill these things on sight, its good to have multiple cards that can do the same thing