Crusade-minded clerics train intensively to learn proper battlefield tactics to take advantage of the weaknesses of demons.
A devilbane priest has the following class features.
The cleric chooses only one domain from his deity’s list of domains rather than the normal two domains. In all other respects, this works like and replaces the standard cleric domain ability.
Demonic Knowledge (Ex)
At 1st level, when making Knowledge (planes) checks regarding demons, demonic cults, and their magic, the cleric gains a bonus on the check equal to half his class level (minimum +1) and can make these Knowledge skill checks untrained.
At 4th level and 8th level, the cleric gains a bonus feat.
Pathfinder Campaign Setting: Inner Sea Magic. © 2011, Paizo Publishing, LLC; Authors: Jesse Benner, Jason Nelson, Sean K Reynolds, Owen K.C. Stephens, Russ Taylor.