Doug Beyer, the author of Alara Unbroken, is a Wizards of the Coast employee responsible for much of the creative content of Magic: The Gathering. His contributions to Magic continuity range from penning card flavor text to writing the weekly "Savor the Flavor" column for magicthegathering.com. It is therefore unsurprising that his foray into M:TG fiction is filled with the kind of detailed, accurate information that is often glaringly absent from those books authored by freelance novelists with no real understanding of the game or of the mechanics of the Multiverse.
However, the problem with Alara Unbroken is not that Beyer has too little to say about his subject, but rather that he has so much to say that to try and condense it into one book seems farcical. The novel, with its terse, two-page chapters, reads like the outline to the three books that he wishes he had been allowed to write. The narrative assumes an epic, plane-spanning scale that would have been served far better by a traditional Magic trilogy, with each book corresponding to an set released for the card game. Unfortunately, this format has been discarded in favor of a new paradigm in which we only get one novel per setting, alongside character-specific "planeswalker novels" with insular plotlines. The latter type, designed to flesh out and showcase pertinent characters, seems like a complete waste of the thoughtfully rendered settings created for the card game (and highlighted in the former type.) If you want to populate a thoughtfully rendered world with well-fleshed out characters, you will either require more pages to do it in or you will have to tell a smaller, more intimate story. Since the block novels tend to be about huge planar cataclysms and epic, inter-dimensional journeys, I suggest that the folks at Wizards try and rustle up a few more pages.