No constration needed, it can last just about forever if you have the gold income for it, no CR limit, it can summon any CR Celestial, Fiend, or Elemental. You can not only ask your deity for the Planar Ally, but also other cosmic beings like Primordials, Demon Princes, Archdevils, Celestial Paragons, Solars, Empyreal Titans, Archelementals, what ever super powered Succubi are called, Utraloths, Slaadi Lords, Primus, The Dark Powers of Ravenloft, Far Realmsian Old Ones, Elder Evils, powerful Primal Spirits, and the Cosmic being can't say no, but they can send you something weak I guess. Plus you can request a Planar Ally by name (this is the real value of the Arcana and Religion skills).
So how do you handle Planar Ally, what do you allow to be summoned?
And is it over powered compared to the conjure animals/fey/woodland creatures/minor elementals/Elementals/Celestials?
It seems swingy depending on ones DM I wish they'd given more guidance with it.
Also I find it funny that the Cleric/Favoured Soul can summon fiends like demons, succubi, devils, yugoloths, and so on, but the Conjurer Wizard can't, plus can summon elementals safer (conjure elemental is dangerous). Conjure Celestial is still valuable, it's cheaper.
So how do you handle Planar Ally, what do you allow to be summoned?
And is it over powered compared to the conjure animals/fey/woodland creatures/minor elementals/Elementals/Celestials?
It seems swingy depending on ones DM I wish they'd given more guidance with it.
Also I find it funny that the Cleric/Favoured Soul can summon fiends like demons, succubi, devils, yugoloths, and so on, but the Conjurer Wizard can't, plus can summon elementals safer (conjure elemental is dangerous). Conjure Celestial is still valuable, it's cheaper.