As for the points you earn from collecting a card, do not spend these freely as they take a while to build up and are used to purchase a single card
The Fusion Monsters in the Deck can be brought out in several possible ways: The easiest way: simply using Contact Fusion due to the various monsters that acquire the specific name of the Fusion Materials
Its continued presence in spin-off titles and the broader Pokmon media ecosystem ensures that it remains a familiar and beloved character for fans, whether they are collecting cards, playing video games, or watching the anime
As these can only be obtained in limited quantities by exchanging the players own high-rarity (at least Three Diamond level) cards, a major problem for many players has quickly become apparent
EDIT 2: I found something else worth mentioning: with the exception of Fusion Monsters, cards that display text before their Requirement lack the rest of the effect (examples are all middle Maximum pieces and The Creator)
I'd bring this work and have a card next to it showing how illustration takes the media and uses it as an instantly recognizable game piece, using an ancient traditional style