Another source of power or might makes all the difference.
Sources of Power is a collection of 5 brand new Class Archetypes:
Channeler Witch - Serve as a direct vessel for your patron's power!
Embrace force over finesse, trading Intelligence's study for Charisma's raw might. Channel your patron's hexes through your body and soul at the expense of some of your familiar's strength.
Eldritch Scion - What if your Magus was a Sorcerer who decided to take up arms instead of a Wizard?
Throw away your spellbook and harness the power slumbering in your blood magic with bloodline spells to supplement your new tactical versatility and Charisma spellcasting! 
Pact Summoner - Some patrons send their magical powers and a familiar to guide you. Some take a more direct approach. 
Bond with your patron's servant—or even the patron themselves—as a Summoner to their Eidolon, fighting alongside them with the bounded spellcasting, hexes, and Intelligence of a Witch!
Sage Sorcerer - Who says that a Sorcerer must rely on charisma and instinct when their powers beg to be carefully studied?
Approach your innate magic with scientific rigor worthy of a wizard or understanding and balance of a druid, trading Charisma for Intelligence or Wisdom depending on your bloodline and gaining fuller understanding of blood's evolution and metamagics in return!
Slayer Thaumaturge - When a man must slay a monster, his best weapons are his wit, guile, and an arsenal of tools targeting every possible weakness.
Trade Thaumaturge's sympathetic bonds and occult esoterica for preparation, planning, and true knowledge! Become a monster hunter worthy of Van Helsing, using your Intelligence to unearth every secret and brand the darkness with truth’s merciless light!