
CryosFirerush |

So if you're playing a Cleric and can get Planar Binding (such as through the Void Domain) what are the restrictions? Mostly are you prohibited from calling a creature opposed to your alignment on the Good<->Evil and Law<->Chaos scale? does that make things harder since you have to cast a Magic Circle spell which is, by nature, of the opposite alignment of the creature you're calling?
Like if you're not at least partially neutral would that make the spell not work for aligned outsiders? If you're Lawful Good you cast Magic Circles against Evil and Chaos but you can't bind a creature of Evil or Chaos and you can't use a magic circle against Good or Law
Come to think of it, how do you bind a neutral outsider since they have no alignment to exploit for a magic circle spell?
Edit: just re-checked the magic circle spells and they work on creature that are neutral on their axis so forget that last part

I grok do u |
As you note, clerics are generally prohibited from using spells with alignment descriptor opposed to their own.
Choosing outsiders that have descriptors that you can use is the easiest way: LN cleric calls LE devil using magic circle against evil, or just call elementals.
Most straightforward workaround is to have them use a scroll and UMD it, with divine penalty possible (or probable).
Another possible option is have another spellcaster do the circle/anchor for you - if the GM allows.
Note that binding enemy outsiders to interrogate or some "greater purpose" is unlikely to upset one's divine patron too much, but an atonement spell will still be a good idea. Binding a succubus as a cleric of Iomedae to make the stag party "lit," however, don't expect to be able to prepare or cast any spells the next morning.

Mysterious Stranger |

Clerics have access to planar ally spells so don’t need to use planar binding for summoning creatures that are allied to their deity. So, a good cleric can use planar ally to get the services of a good creature. The planar ally spells do not require force so are superior to the planar binding spells but are limited in what can be called.
Clerics that gain the spell from a domain or something similar can use it to call creatures that are not share or oppose the deity's alignment. So, your neutral good cleric would use planar ally on a good creature and could bind a LN, N or CN outsider.