Spoiler: Etrigan is a terrible rhymer. We get a great backstory here of where Etrigan came from and why he's so darn angry. This is a new origin for a whole new generation of DC readers and it works very well. We also get a nice intro for Jason Blood as well and the world of Camelot.
Paul Cornell does a stellar job at not only giving us a great back story here, but Cornell also makes it a lot of fun. He beats down this character in the first few pages and you really start to feel for him, so you're really rooting for the character as he battles his way through other demons in Hell.
I really like how and why these two characters came together. Jason Blood comes off like a character who deserves what happens to him, so by the end of the issue, there's a feeling of justice. On the other hand, you start to really feel bad for Etrigan because he wants to get away from being someone else's lapdog, and by the end of it all, he may have gotten away from that, but not too far away.
While I really like the idea of Jason Blood having to have his future altered in order to stop his rage and prevent him from all out losing it, I thought it wasn't a big enough event for him to be cursed. Maybe it's just me.
As always, Bernard Chang's art is beautiful and Marcelo Maiolo's colors are amazing. This is one hell of an art team. Every panel looks beautiful, especially everything in Hell. There's lots of great looking demons and a fantastic amount of detail in every panel.
Demon Knights 0 is a fantastic origin to an already fantastic series. I loved seeing how Jason Blood and Etrigan got to be where they are now. Paul Cornell has been awesome on this book, and he really does well defining who these characters were and where they came from.
The art team of Bernard Chang and Marcelo Maiolo does a wonderful job on this book. I loved the line work and colors here, and think it's the perfect fit to Cornell's writing.
Overall, I highly recommend this issue.