In terms of weight card stock, making it 0.23 or 0.2 result in a person looking to buy cardboard?
I'm trying to produce a game and so far have been working with standard Avery cardstock. However, do not have the right feel and weight to it. I'm looking to get a sense close to Pokemon, Magic and Yu Gi Oh cards in the final product.
This is difficult to answer because the composition of these cards seems to be a closely guarded secret. The reason is that counterfeiters could have a field day if it was easy to play cards. Your best best is to go to visit a commercial printer in your area and put in some samples of cards, and explain what you're looking to do. The person who helps you have plenty of samples and should be able to match the look you want.