First off, I think that Augment Summoning feat does work on the summon swarm spell but was just hoping someone could confirm this for sure.
Assuming that it does work, does that mean that say a swarm of bats now do 1D6 + 2 str dmg from its automatic attacks each round as opposed to just 1d6? Also, are the total hit points of the swarm boosted by +2 hit points per hit die for the augmented constitution?
Lastly, I think a bat swarm occupies a 10 foot square. Does that mean it does its automatic d6 damage to all creatures within the 10 foot square or can it only target one creature?
IMO
I think they meant only for SM/SNA but that is unclear.
Its damage would not increase (it does not suffer a damage penalty for a 3 str)
I would say Its HP increases.
It attacks all creatures that share it's space.