If you wish to understand the Summoner class and to expand the options available to these magical masters, the Summoner’s Circle is an excellent sourcebook. Summoners and conjurers will especially benefit from the feats but others will too.
The Summoner’s Circle: Advanced Feats is a 19-page PDF (17-pages if you remove the cover, ad and OGL page) for the Pathfinder RPG written by Sigfried Trent and published by Open Design. This is part of Open Design’s Advance Feats line for Pathfinder.
The layout is primary traditional two columns and the table of feats clear to read. The cover is full color while the minimal interior art is black and white and supports the theme. An eidolon character sheet is included at the end.
The Summoner’s Circle begins with an introduction to this product and its aim, which is to provide a detailed look at the Summoner class and ways to play it as well as providing additional options for the class. It does a good job laying out the basic ins and outs of the summoner and provides a grounding in the class’ abilities with a good look at the role of the eidolon.
Much of the product is the thirty new feats, only four of which are tied to Summoner class abilities though several are primarily monster-type feats, and each has paragraph or so of commentary that talk about the reasoning behind the feat and discusses balance issues -if any- with each feat. Personally, I appreciate this insight into the design process. The feats are solid mechanically and certainly aimed toward what the Summoner does well, which is creating and manipulating things.
Concluding the product are three example 20-level character and eidolon builds, showing feat and ability progressions: the Chess Master (battlefield manipulator), Mythic Rider, and the Master of Arms (combat summoner).
Disclosure: As a featured reviewer for RPGNow/DriveThroughRPG, I received my copy of this product for free from the publisher for the purpose of this review.
[5 of 5 Stars!]