Have scoured over the discussion boards regarding sacred summons and it all seems a bit confusing.
Using the Herald Caller Archetype
A herald caller can use summon monster spells only to summon creatures particularly appropriate to her deity. This includes all creatures listed as summon monster options for priests of her deity (see Expanded Summoning for Clerics), creatures whose alignment matches at least one aspect of her deity’s alignment, and creatures of an elemental subtype that matches a domain granted by the deity (if any).
Given this ability to summon any monster that matches at least 1 aspect of alignment, does sacred summons then apply to the 1 aspect alignment?
Example:
Archons [LG]
Demons [CE]
Any advice or guidance on this rule is helpful