Books like Dissension

If you want a real review, then read the bottom paragraph. This book was a great read as a kid. I had never read any MTG books before and was not expecting much, but this type of book really intrigued me. (Almost a decade later) I went on a 2 week search for this book without the knowledge of the author or title and only the cover picture of the book. It has been eight years since I've read this book and yet I find myself recalling everything that happened... . Even after first reading it I would have vivid dreams for months. It was also the first time I saw a book series (and not fully understanding that I was about to read a book the had two preceding it).In the Magic the Gathering series, this is the first time that the story is told in the perspective of a dead character. Well, he’s not exactly dead, he’s just undead. The main character, who’s the undead hero, Kos was summoned to the streets of Ravnica because he had to save the city from all of the frightening creatures.However, there is a strange consequence for saving the city for Kos. How could he choose between his duty and his freedom? It would be a very hard decision to make for anyone. If he chooses to deny his master, Kos will stay in hell and that means that he only gets to traverse the world of the underground. If he follows the orders that he receives, he will be able to roam both worlds as he pleases. Which path will he choose?