(General)
You've learned to summon a wider array of creatures.
Prerequisites
Augment Summoning,
Spell Focus (conjuration),
Knowledge (nature) 1 rank,
Knowledge (planes) 1 rank.
Benefit
When you summon one or more animals, humanoids, or vermin using a summon nature's ally spell (or an effect that mimics such a spell), instead of granting them the benefit from
Augment Summoning, you can instead apply one of the following templates to them: aerial, aqueous, chthonic, fiery, or primordial. If you summon multiple creatures with one casting, they must all have the same template.