They may look at if the printing is centered, if the corners are unbent, if theres damage to the edges, and if there are any visible creases in the image
Find a starter kit you like, grab a friend, sleeve them up, and jump in
When you have too many cards in your hand, make use of spare Event cards such as "OP11-060 Let's Crash This Wedding!!!" by trashing them for Nami's [On Your Opponent's Attack] effect, similar to a Counter, allowing you to keep your hand size below 7 to activate your Leader effect
The world-themed trading card game "Pokemon Card Game" of the game software "Pokemon" series has various ways to enjoy, such as collecting cards, playing against each other, participating in events, and all over the world, including Japan
How to Perform the Test: Take a known genuine card from the same era and shine your flashlight directly through the back of it