2 Level 5 or higher "Vaylantz" monsters Must first be Special Summoned (from your face-down Extra Deck) by Tributing the above cards. (Quick Effect): You can switch the locations of 2 monsters in your Main Monster Zones or 2 monsters in your opponent's Main Monster Zones. If a card in the Monster Zone moves to another Monster Zone (except during the Damage Step): You can destroy 1 card on the field. You can only use each effect of "Arktos XII - Chronochasm Vaylantz" once per turn.