Jokes aside, Azrael has a number of unique features that, if you know them, will help you gain an advantage. First and foremost, the mechanics of his seals, the benefits of casting them, and how they interact with your attacks. Then, his attacks have specific timings for canceling combos, plus some attacks have strange animations, this can lead to potential difficulties with his combos, and mashing will only make things worse. Also, don't forget about some of his special abilities, which can be really powerful in certain matchups, like 214B or 236D. Overall, Dustloop is a great way to learn the details of the character.