add_scaled_artifact_modifier_attractiveness_effect

add_scaled_artifact_modifier_attractiveness_effect = {
	random_list = {
		# attraction_opinion
		20 = {
			modifier = {
				exists = scope:inspiration_owner
				scope:inspiration_owner = { has_variable = chosen_attraction_mod }
				add = 160
			}
			if = {
				limit = { rarity = common }
				add_artifact_modifier = artifact_attraction_opinion_1_modifier
			}
			else_if = {
				limit = { rarity = masterwork }
				add_artifact_modifier = artifact_attraction_opinion_2_modifier
			}
			else_if = {
				limit = { rarity = famed }
				add_artifact_modifier = artifact_attraction_opinion_3_modifier
			}
			else_if = {
				limit = { rarity = illustrious }
				add_artifact_modifier = artifact_attraction_opinion_4_modifier
			}
		}
		# fertility
		20 = {
			if = {
				limit = { rarity = common }
				add_artifact_modifier = artifact_fertility_gain_1_modifier
			}
			else_if = {
				limit = { rarity = masterwork }
				add_artifact_modifier = artifact_fertility_gain_2_modifier
			}
			else_if = {
				limit = { rarity = famed }
				add_artifact_modifier = artifact_fertility_gain_3_modifier
			}
			else_if = {
				limit = { rarity = illustrious }
				add_artifact_modifier = artifact_fertility_gain_4_modifier
			}
		}
		# courting_scheme_phase_duration_add
		15 = {
			trigger = {
				scope:owner = {
					diplomacy >= intrigue
				}
			}
			if = {
				limit = { rarity = common }
				add_artifact_modifier = artifact_courting_scheme_phase_duration_add_1_modifier
			}
			else_if = {
				limit = { rarity = masterwork }
				add_artifact_modifier = artifact_courting_scheme_phase_duration_add_2_modifier
			}
			else_if = {
				limit = { rarity = famed }
				add_artifact_modifier = artifact_courting_scheme_phase_duration_add_3_modifier
			}
			else_if = {
				limit = { rarity = illustrious }
				add_artifact_modifier = artifact_courting_scheme_phase_duration_add_4_modifier
			}
		}
		# befriend_scheme_phase_duration_add
		5 = {
			trigger = {
				scope:owner = { intrigue <= low_skill_rating }
			}
			if = {
				limit = { rarity = common }
				add_artifact_modifier = artifact_befriend_scheme_phase_duration_add_1_modifier
			}
			else_if = {
				limit = { rarity = masterwork }
				add_artifact_modifier = artifact_befriend_scheme_phase_duration_add_2_modifier
			}
			else_if = {
				limit = { rarity = famed }
				add_artifact_modifier = artifact_befriend_scheme_phase_duration_add_3_modifier
			}
			else_if = {
				limit = { rarity = illustrious }
				add_artifact_modifier = artifact_befriend_scheme_phase_duration_add_4_modifier
			}
		}
		# seduce_scheme_phase_duration_add
		20 = {
			trigger = {
				scope:owner = {
					intrigue >= diplomacy
				}
			}
			if = {
				limit = { rarity = common }
				add_artifact_modifier = artifact_seduce_scheme_phase_duration_add_1_modifier
			}
			else_if = {
				limit = { rarity = masterwork }
				add_artifact_modifier = artifact_seduce_scheme_phase_duration_add_2_modifier
			}
			else_if = {
				limit = { rarity = famed }
				add_artifact_modifier = artifact_seduce_scheme_phase_duration_add_3_modifier
			}
			else_if = {
				limit = { rarity = illustrious }
				add_artifact_modifier = artifact_seduce_scheme_phase_duration_add_4_modifier
			}
		}
		# spouse_opinion
		20 = {
			trigger = {
				scope:owner = {
					is_married = yes

As written in game/common/scripted_effects/00_ep1_artifact_creation_effects.txt.