From publisher blurb: "Into the Breach" is a series of "crunch-focused" books intended to expand the options available to the base classes (alchemist, cavalier, gunslinger, inquisitor, magus, oracle, summoner, and witch). For this first release we chose to focus on the Summoner- a class some consider controversial. Within this 26 page book you'll find 6 new archetypes, 4 new evolutions, 3 new base forms, 10 new spells, 3 new summoner friendly prestige classes and a new alternate base class.