Card grading is the process of having your trading card professionally assessed, scored, and sealed in a tamper-proof case
Clarke's Third Law: Technology is so advanced at this point, Action Duels are more or less Shadow Duels
Language / Region: Japanese / Japan release
About five years ago, those types of cards were much better since cubes were slower, but with many cubes adopting aggressive strategies and getting more efficient removal options, things like the Vindicate test (where you get an effect out of it if the creature dies at sorcery speed, so Consecrated Sphinx passes that test) hamper its effectiveness, but it does protect itself well if you are able to untap with it since you can turn just about any blue card into a counterspell or draw card
Communication with Duel Monsters - Being one of Zarc's reincarnation, Ygo inherited Zarc's ability to hear the voices of Duel Monsters and communicate with them, particularly with his ace monster, "Clear Wing Synchro Dragon" and the other three dragons
That firey determination often leads them to jump into things headfirst, without really thinking of the consequences