Each GX has its one move that goes with a strategy in some way, so if you’re getting some GXs online for battling, then you need to first figure out your what deck your building and what strategy it is using. Also, if you’re getting GXs for gameplay, get ones that either have the same energy requirements as the cards in your deck, or that are evolutions of Pokémon in your deck. It you want a common Pokémon card instead of GX Pokémon, you can go through this same selection process. Just note that GX cards have one special move that other cards do not have, making them more valuable. Plus, their HP is way higher than their normal form.
What types you want. How much money you want to spend. If they work well with your existing cards.
One purchase that is guaranteed to get you some GX cards is that of a Pokémon GX box. They cost a lot of money, because there are more than one card in there, including the GX card. The benefit is that you get some cool cards, though, plus the little but possible chance of getting another one in the booster packs it comes with!
Be sure you are certain that that is the GX card you want.
If you have a really weak Pokémon you really don’t need or want, or you’re trading partner is giving you something really rare for something that isn’t as much (like a Silvally GX for a rainbow rare Reshiram and Charizard GX ), then it is okay to only have one type and trade it away.
What you want to trade for. What’s your end goal? Whether it’s a good or bad trade for you. What will you be losing? Whether it’s fair for both sides, within reason. You want to be smart about your trade, but you may not want to intentionally hoodwink a friend of yours. Be reasonable.
Sometimes people allow you to think some more after the trade by leaving the door open to trade back. Just make sure you trust them before you trade on this basis.
Try decoration the box with Pokémon colors (red, black, and white). Then it’ll be easily recognized as your Pokémon GX box.
Write “Pokemon GX Cards” in marker on the bag. That way you’ll know that that bag holds your GX Pokémon.
For example: an error on the name of a Pokémon, like Pikachu being spelled as ‘Pekachu’.
On the previous step, what takes part in the card bending easily is if the black sheet isn’t in the middle of the card, making it easier to bend, which adds on to the point that it is fake.