Though playtest cards are illegal by default, if your playgroup is fine with you using them, you can "rule-zero" them and play with them anyway
My first TCG was the very first Yu-Gi-Oh for Gameboy Advance way back around 2000
These are often lords, like Drogskol Captain, Supreme Phantom, and Vanguard of the Restless
The concept is very simple, but it works, and feels like a far more practical implementation than lets say, a battle card
Jigglypuff is also kinda weird to me I chalk that up to "mascot" but I agree #14 Hatenna feels very random to me Maybe chosen bc of the anime but still a bit random #15 Funny how they made all the cards I'd want holos of non-holo and pretty much the cards I don't care about holo
By staying cautious and committed to learning the ebb and flow of the collectibles market, you can take advantage of a McDonalds Pokmon card investment