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Carnot the Eternal Machine
LIGHT · Machine / Effect Monster · Level 10 · ATK 3000 / DEF 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.
Is it legal?
TCGUnlimited (3)
OCGUnlimited (3)
Master DuelUnlimited (3)
Rarity: Super Rare (SR)
Genesys0 points
Price
About $0.89–$0.94 across printings and stores (as of Oct 9, 2026). See listings on TCGplayer · eBay · Cardmarket (EU)
Price history & alerts
Played in tournaments
In 4 recent tournament lists, mostly Trains (4).
Most often played with
Across the tournament lists that run Carnot the Eternal Machine: the share of those lists that also run each card.
Night Train Blue Traveler100% of lists
Infinitrack River Stormer100% of lists
Revolving Switchyard100% of lists
Convex Knight100% of lists
Urgent Schedule100% of lists
Double Headed Anger Knuckle100% of lists
Qliphort Genius100% of lists
Superdreadnought Rail Cannon Juggernaut Liebe100% of lists
Infinitrack Goliath100% of lists
Subspace Battle100% of lists
Superdreadnought Rail Cannon Gustav Max100% of lists
Jizukiru, the Star Destroying Kaiju100% of lists
Printings
| Set | Code | Rarity |
|---|---|---|
| Phantom Nightmare | PHNI-EN024 | Quarter Century Secret Rare |
| Phantom Nightmare | PHNI-EN024 | Ultra Rare |
Build a deck around Carnot the Eternal Machine
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