de_jure_shifting_effect

de_jure_shifting_effect = {
	while = {
		count = 25
		limit = {
			OR = {
				any_realm_de_jure_$LOWER_TIER$ = {
					mpo_de_jure_shifting_triggers = { UPPER_TIER = $UPPER_TIER$ }
				}
				any_tributary = {
					highest_held_title_tier < root.highest_held_title_tier
					any_realm_de_jure_$LOWER_TIER$ = {
						mpo_de_jure_shifting_triggers = { UPPER_TIER = $UPPER_TIER$ }
					}
				}
			}
		}
		random_realm_de_jure_$LOWER_TIER$ = {
			limit = {
				mpo_de_jure_shifting_triggers = { UPPER_TIER = $UPPER_TIER$ }
			}
			set_de_jure_liege_title = root.primary_title
			add_to_list = de_jure_shifted_title
		}
		random_tributary = {
			limit = {
				highest_held_title_tier < root.highest_held_title_tier
				any_realm_de_jure_$LOWER_TIER$ = {
					mpo_de_jure_shifting_triggers = { UPPER_TIER = $UPPER_TIER$ }
				}
			}
			random_realm_de_jure_$LOWER_TIER$ = {
				limit = {
					mpo_de_jure_shifting_triggers = { UPPER_TIER = $UPPER_TIER$ }
				}
				set_de_jure_liege_title = root.primary_title
				add_to_list = de_jure_shifted_title
			}
		}
	}
	while = {
		count = 25
		limit = {
			list_size = {
				name = de_jure_shifted_title
				value >= 1
			}
		}
		root = {
			send_interface_message = {
				type = msg_mpo_de_jure_shifting
				title = msg_mpo_de_jure_shifting
				left_icon = root
				ordered_in_list = {
					order_by = {
						value = 1
					}
					max = 3
					check_range_bounds = no
					list = de_jure_shifted_title
					show_as_tooltip = {
						set_de_jure_liege_title = root.primary_title
					}
					remove_from_list = de_jure_shifted_title
				}
			}
		}
	}
}

As written in game/common/scripted_effects/09_dlc_mpo_scripted_effects.txt.