Well, the player should ask if they have any questions. Hopefully, he or she is attending a league, which are great places to learn about official rulings and how cards properly work. Wordings can be a bit weird since they sometimes change slightly due to technicalities. Questions always arise because the ones who make the game try to find some way to change the pace and balance of the game. There's the old Night Maintenance and the current Super Rod. Both with very similar effects, but the former allows for up to three
, while the latter requires three or as much as you can. If they could cover all technicalities on the cards, they would just be exhausting to read, especially for the young ones.
contains useful, official rulings and you can find questions others have in Pokegym's Ask the Rules Team
forum. Rulings and decisions made in those places are official.