Mythical Denizens presenst an excellent collection of antagonists and inhabitants for the World. Each option presents story hooks, Storyguide tips, easy-to-use antagonist stats, and new rules when necessary. The antagonists come from a variety of myths associated with or adjacent to the pantheons presented in the core material for Scion 2nd Edition. The antagonists are divided into five types: Fair Folk, Giants, Therianthropes, Legendary Warriors, and Centaurs. However, they're not limited to the traditional representations. For example, a Tanuki trickster spirit from Japanese myth is presented in the section on the Fair Folk. The antagonists are presented with interesting nuance and story hooks for msot of them offer both sympathetic and antipathetic options for most of them that create interesting choices for Player Characters.
If I had one primary criticism, it would be that the supplement does not set out to do what I wanted it to do. I was hoping that for each antagonist type, we'd get some general information about what these denizens are like in the World and advise for creating your own. For the Fair Folk in particular, I was hoping to get a sense for their place in the setting. Only Centaurs get the braod treatment, which is really excellent in establishing their place in the World and its history. That said, I'm not deducting a point from my rating since this wasn't a promise of Mythical Denizens, merely my hope for it.
Overall, I'm very happy with this as bonus material from the Scion 2nd Edition Kickstarter. If I hadn't recieved it as a backer, I'd be willing to pay the $5 price tag to add it to my collection.
[5 of 5 Stars!]