how to tell what set a pokemon card is from do you identify series from? Basic Authenticity Guide Slide to
Description
Do you buy cards in poor condition
Magmortar One of the newest Pokmon cards to get changed is a Magmortar card released in Japan in 2012 inside the Dragonblade Black and White set

During the production of the Prerelease Clefable for the Jungle set, a few Base Set Raichu cards were accidentally stamped with the prerelease mark (the original prerelease card for Base Set is Gyarados)
The Card Has High Value or Popular Demand If your card already sells raw (ungraded) for $50+ or its a fan-favorite like Charizard, Umbreon, or Pikachu, grading could significantly increase its value

Insert one card at a time into the protective bag to protect cards from scratches
Which grading company to choose
