I do have one issue with the Digimon Card Game. You can ignore your opponent's Digimon and attack their securities at anytime AND IT DOESN'T MATTER if you lose the fight, THEY STILL LOSE A SECURITY CARD. So the only thing to try to keep you from doing it and ending the game is the low risk of losing your Digimon, which almost makes a level 3 deck (rookies only) OP as hell due to low memory costs
