Summon Companion (Feat)

You can call forth creatures that become your companions.

Prerequisites: Caster Level 15, Cha 23, Prolonged Summons (Feat)

Benefit: Once per day, when you summon one or more creature(s) with any Summon spell you cast yourself, the creature(s) summoned remain in your service for three additional steps on the time scale, unless they are killed before then. If you use this feat again before the previous duration expires, then the creatures remain for another time interval equal to the first. This may be continued indefinitely.

Creatures summoned when this feat is used are friendly and loyal to the summoner, and will act in their best interests in all instances.