Summoners rip open the fabric of reality and call forth powerful beings to fight and live alongside them. Some Summoners become entangled with evil beings from the lower planes while others befriend beings from the upper planes; this affinity tends to affect both the summoners summoned creatures appearence but also the summoners personality.
Mechanically you are a full caster with charisma as you spell casting ability modifier that pits their will against reality and the creatures you summon to perform your magic. The base class abilities are focused on buffing your summoned creatures and allowing you to have more summoned creatures avalible for an extended period of time.
The two subclasses are Beneficial and Malicious. Beneficial Summoners are focused on mutual benefits for them and their summoned creatures while malicious Summoners use their summons to create pain and to save themselves while sacrificing their summons.
- from the publisher's blurb