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Description
| Set: | Phantom Nightmare |
| Card type: | Effect Monster |
| Rarity: | Quarter Century Secret Rare |
| Attack: | 3000 |
| Defense: | 2500 |
Cannot be Normal Summoned/Set. Must first be Special Summoned (from your hand or GY) during a Duel in which your opponent has activated a monster effect in their hand or GY. You can only Special Summon “Carnot the Eternal Machine” once per turn. Once per turn, if your opponent activates a monster effect (except during the Damage Step): You can make this card gain 1000 ATK. If this card is sent to the GY, except from the hand or Deck: Shuffle this card into the Deck.
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