Exotic Dragnal Armor

:Trigger effects do not activate for the damage check by this effect. When this unit attacks, [ 2 & 1], if your opponent's damage zone has four or less cards, choose one of your opponent's vanguards, and deal one damage. If you a card with "Overlord" in its card name for this cost, and your opponent's damage zone has three or less cards, deal two damage instead of one.