Ancient Gear Gadget [SR03-EN000] Ultra Rare Duel Power This effect can be used

This effect can be used only once while this card is face-up on the field

This card cannot be Special Summoned except by its own effect

if this card attacks

But the mysterious thing is that its memory i

if this card was Special Summoned this turn: Return it to the hand

Ancient Gear Gadget [SR03-EN000] Ultra Rare Duel Power This effect can be usedSet: Structure Deck: Machine Reactor Card type: Effect Monster Rarity: Ultra Rare Attack: 500 Defense: 2000 If this card is Normal or Special Summoned: You can declare 1 card type (Monster, Spell, or Trap); this turn, if a monster you control attacks, your opponent's Spell Cards, Trap Cards, or monster effects (whichever was declared) cannot be activated until the end of the Damage Step. Once per turn: You can declare 1 "Gadget" monster's card name;