Summon Ancestral Guardian, Spiritual Weapon, etc.

[lalallaalal]

I'm playing a Dwarven cleric that likes to summon these spiritual combatants. My question is can these be attacked by any means other than the spells listed in the spell description?

If they can't be attacked, would an enemy that is confused make the attempt anyway if his roll came up as attack nearest?

Does Augment Summoning work with these spells at all?

[Talynonyx]

Only what is in the spell description. And Augment Summoning works with Summon Ancestral Guardian, but not Spiritual Weapon or Ally, because they are evocation spells.

And sure, an enemy who doesn't understand how these spells work might direction an attack or two against them. I know I'd run it that way for ignorant foes like low-level bandits or such.