Yu-Gi-Oh! · Phantom Nightmare
Carnot the Eternal Machine (Quarter Century Secret Rare)
Carnot the Eternal Machine (Quarter Century Secret Rare) (Phantom Nightmare PHNI-EN024) has a market price of US$18.68 as of Nov 9, 2026.
Price guide
The market price on TCGplayer, in US dollars: a guide, not an offer.
Market price
As of Nov 9, 2026 · The market price is TCGplayer’s, in US dollars. It is a guide, not an offer.
Card details
- Type
- Effect Monster
- Level
- 10
- Attribute
- LIGHT
- Monster type
- Machine
- ATK
- 3,000
- DEF
- 2,500
Card text
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.
About this card
Carnot the Eternal Machine (Quarter Century Secret Rare) is card PHNI-EN024 in Phantom Nightmare, a Yu-Gi-Oh! set released Feb 9, 2024. Rarity: Quarter Century Secret Rare. Finishes: 1st Edition. Reference market price on Nov 9, 2026: US$18.68. Over the last 30 days, the 1st Edition price went up 15.6%. Source: TCGplayer market data via tcgcsv.com, updated daily. A reference price is not an offer.
