Yes, misprint Yugioh cards are legal. While they may not be as aesthetically pleasing as other cards, they are still legal for use in tournaments and official events. Misprints can occur for a variety of reasons, such as a printing error or damage to the printing plate. However, no matter how a misprint occurs, it does not render the card illegal. So if you come across a misprint card, don't hesitate to use it in your next game!