Religion

=Human= In general those humans that believe in the existence of a superior being, seems to follow the teachings of the Church of Ivala. Very little is known about the Goddess, apart from her predilection for the Chosen as her primary weapon against the Incubus King. It's even unclear if she likes them or she uses them because she has no other resources.

The church is structured in function of the human kingdoms. There are seven High Priestess (one for each kingdom, included the lost one, so far in the game have appeared three: Sarai: High Priest from the Lost, Hester: High Priest from Ardoheim and Andra: High Priest of Yhilin). But the Church (one of the few human organizations that has confronted with determination the invasion of the Incubus King) is trifled with intrigues and infightings due to doctrinal disputes and personal ambitions.

Consecrationists
They believe that mortals are inherently sinful, but can be purified. Most of the factions tend to be reasonable enough.

Sarai is a good example of that faction.

Desecrationalists
They believe mortals are born pure, but can irrevocably lose the purity to sin. They are zealots, but because of their use of Unmen and Unwomen in battles, they are not to be trifled with. Some of their members are implied in the Coup against the Queen Janine.

Subscrationalists
Humans are permanent mixtures of sin and purity, thus allowance must be made for both natures. Their successes against the Incubus King is only rivaled by their creation of Yhilin Inquisition.

Carina belongs to this group.

Ranks in the Church
Though men and women both follow the Ivalan religion, we've only seen women in positions of power so far. Why this is true, if it is, has yet to be revealed.

Priestess - standard ranks of nuns, celibate Sanctified Priestess - a rarer rank that requires some kind of process
 * Inquisition Priestess - some are clearly combat oriented, like Carina
 * Lay Priestess - Sarai mentions this as if it's a type of priestess except from the celibacy requirement

High Priestess - the seven top leaders of the Church

=Succubi= Some of the Succubi has some sort of religion, probably unorganized and unstructured, centered around the mythical figure of the Lustlord (not relation with the Lustlord guy, Yarra confides to Simon that he doesn't feel any more powerful than the Incubus King, that appears after the battle against the horde).

=Elves= The elves we've seen seem to worship a different goddess called the Mother. Exactly what their religions or beliefs are remains unknown, but they seem to view the Mother as a specifically elven god as oppossed to Ivala as a human god. Not all elves (particularly Altina) agree with this or worship the Mother.

=Dwarves= in University Library we red that t hey believe the goddess who created them resided in the stone. They stopped believing in her as some think they died and others that she left them alone.

But in Eustrin we find a shrine to Tertia the Godess of all the Earth with plenty of flowers and a praying believer.