suitable_faith_for_any_ghw_trigger

suitable_faith_for_any_ghw_trigger = {
	main_rite = {
		OR = {
			rite_has_parameter = great_holy_wars_active
			AND = {
				rite_has_parameter = great_holy_wars_active_if_reformed
				NOT = { rite_has_parameter = unreformed }
			}
		}
		OR = {
			rite_has_doctrine = doctrine_temporal_head
			rite_has_doctrine = doctrine_spiritual_head
		}
		OR = {
			rite_has_doctrine = divine_destiny_doctrine
			NOT = { rite_has_parameter = holy_wars_forbidden }
		}
	}
}

As written in game/common/scripted_triggers/00_great_holy_war_triggers.txt.