"Magic: The Gathering - How Equipment Became the Premier Weapons of War"
However, the usual size of a business card might differ by Pixel per Inch (PPI) used
In the manga, their effects activate when both duelists have one part of the pair in their Extra Decks, while in the TCG, they instead activate if one duelist has both on the same side of the field
Your child doesnt have to learn about every card, but having an idea of what their more appealing cards are worth will help them make balanced decisions when trading
Its a decent card mechanically too, with the Clutch attack, costing 1 Fire Energy, dealing 60 HP of damage and blocking the Defending Pokemon from retreating on the next turn
Each attack with Arthur gets you a new creature and presumably a new triggered ability to advance your position