We all know how broken this can be at the kitchen table with free cards from a three-color drop that cannot be easily targeted (cough...Narset, Enlengthened Master...cough)
First, you can shuffle the Pikachu and Charizard decks out of their predetermined order, making play a bit more random
this turn, you can activate a Continuous Trap Card with an effect that Special Summons itself as a monster, the turn it was Set
As more Effect Monsters came into the picture, the ability to use cards in the Graveyard became commonplace
With a barcode and serial number, you can verify authenticity directly on the grading companys website
Compare it to a photo / real card Wrong HP, attack, or weakness and retreat values Wrong set details, including number or symbol Missing holo layer (or having one when it shouldnt) Texture issues Weird font and text size problems The best method to compare a real to a fake is to, well, compare them