Ultimate Spheres of Power is the compilation volume for the Spheres of Power ruleset for Pathfinder 1E. This product introduces a modified form of spellcasting where different powers are separated into categories known as spheres that players can pick and choose from in order to create a more unique, thematic character. Additional systems like casting traditions allow for further uniqueness, all wrapped in an easy-to-learn packaging that's friendly even for newcomers.
The original Spheres of Power was a fairly large book in its own right, but this compilation volume that includes material from numerous handbooks and other releases clocks in at over 600 pages of content and represents the definitive edition of the core Spheres of Power rules.
I received this product through DriveThruRPG after backing the Kickstarter campaign that created it, and I have no regrets about helping fund it. Put simply, these rules offer a level of depth and creativity for characters (without making it too complicated to learn!) that other rulesets for Pathfinder 1E simply can't match. If you're looking for something new to refresh your Pathfinder 1E games, or you're thinking about getting into it for the first time but want to create a concept that doesn't quite fit in the core rules, check out this product. There's a reason Spheres is one of the most beloved third-party rulesets for Pathfinder 1E, and this book is more than worth the price. It's not merely a 5/5, it's one of my top recommendations period.
[5 of 5 Stars!]