Separatist

A radical cleric, unsatisfied with the orthodoxy of their deity’s teachings, forges their own path of defiant divine expression. Though most members of their faith would call them a separatist or heretic, they continue to receive spells from their deity. Charismatic separatists may develop a large following of like-minded believers and eventually found a splinter church of their deity—and they are just as likely to be the cause of a holy civil war as the branches of the religion fight to determine which is the true faith.
  A cleric who does not serve a deity cannot take the separatist archetype.
  A separatist has the following class features:
 

Weapon and Armor Proficiency

Separatists do not gain proficiency in their deity’s favored weapon (though they are not prohibited from using it or learning its use).
 

Forbidden Rites

A separatist selects one domain from their deity’s domain list, and a second domain that is not on their deity’s domain list. This second domain cannot be an alignment domain that doesn’t match the cleric’s or their deity’s alignment. For example, a lawful good separatist cleric of a neutral good deity cannot choose the Chaos or Evil domain with this ability, but can select the Lawful domain even though their deity isn’t lawful.
  Granted powers from the cleric’s second domain function as if the cleric’s level, Wisdom, and Charisma were 2 lower than normal (minimum level 1) in terms of effect, DC, and uses per day. This also means the separatist doesn’t gain the domain’s higher-level ability until 2 levels later than normal. If the second domain grants additional class skills, the separatist gains these as normal.
  In all other respects, this ability works like and replaces the standard cleric’s domain ability.