I play competivly and card effect don't function properly to the point its down right cheating. I still have it installed in hopes they respond to my reports to these bugs, but still to no response. I would like to invest money into this game for boosters, structure decks, and game mats. But I refuse to support any game that relies on supporting pay to play users by cheating. I'm disappointed with Konami, I used to love yugioh but now I'm about to sell my cards and switch to Pokémon or Magic.