Cyber Vouivre Cuirassée PTDN-FR009

Once per turn, you can EITHER target 1 "Cyber Dragon" you control or 1 Fusion Monster you control that lists "Cyber Dragon" as a Fusion Material Monster, and equip this card to the target, OR unequip this card and Special Summon it in Attack Position. Once per turn, while it is equipped to a monster by this effect, you can target 1 face-up monster on the field, the equipped monster loses exactly 1000 ATK, and if it does, destroy the target. (A monster can only be equipped with 1 Union monster at a time. If the equipped monster would be destroyed, destroy this card instead.)