creator_mandala_built_regular_building_piety_effect

creator_mandala_built_regular_building_piety_effect = {
	if = {
		limit = {
			NOT = { exists = scope:character }
		}
		county.holder = { save_scope_as = character }
	}
	scope:character = {
		if = {
			limit = {
				government_has_flag = government_is_mandala
				house ?= { has_house_aspiration_parameter = aspect_of_creation }
				is_house_head = yes
			}
			add_piety = {
				value = minor_piety_value
				multiply = { value = creator_mandala_piety_gain_scale }
			}
		}
	}
}

As written in game/common/scripted_effects/tgp_mandala_scripted_effects.txt.