He´s doing 6A in oki and i instantly use DP to clash and try to punish it in the 2nd with my 6A or 3C but i really don´t know if he is totally inmune while he doing 6A, my 2 atacks apparently just go through him, sometimes i just wake up jump when that happens but it doesn´t work either.
About the back dash at the start it´s most of the times backdash followed by gustaf buster or backdash forward dash-empty jump-grab/cross up B(i think it´s B at least), and one more thing,i don´t know if his divekick can be punished by 2C or 6A, maybe it´s my bad timing with that kick but i don´t know that much about Azrael.