Carnot the Eternal Machine
Carnot the Eternal Machine is a Effect Monster, first released in 2024 in Phantom Nightmare. It has 2 printings across 1 set (Ultra Rare, Quarter Century Secret Rare). The cheapest copy is PHNI-EN024 Ultra Rare at $0.90; the most valuable is PHNI-EN024 Quarter Century Secret Rare at $15.16. In the TCG it is currently unlimited (3 copies).
Market price · TCGPlayer
Updated Oct 1, 2026
$0.90 – $15.16
2 printings priced
Type
Machine
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.
Appears in 1 expansion
Printings (2)
| expansion | Code | Rarity | Price | Buy |
|---|---|---|---|---|
| Phantom Nightmare | PHNI-EN024 | Ultra Rare | $0.90 | |
| Phantom Nightmare | PHNI-EN024 | Quarter Century Secret Rare | $15.16 |
Carnot the Eternal Machine: FAQ
How much is Carnot the Eternal Machine worth?+
Carnot the Eternal Machine currently sells for $0.90 – $15.16 on TCGPlayer, from $0.90 for PHNI-EN024 up to $15.16 for PHNI-EN024. The exact value depends on the printing, rarity, edition and condition — scan the card with YuScan to see the price of your copy.
Which sets was Carnot the Eternal Machine printed in?+
Carnot the Eternal Machine appears in 1 set: Phantom Nightmare.
Is Carnot the Eternal Machine legal in tournaments?+
On the current TCG Forbidden & Limited List, Carnot the Eternal Machine is unlimited (3 copies).
What is the passcode of Carnot the Eternal Machine?+
The 8-digit passcode printed on Carnot the Eternal Machine is 13567610.
What is your collection worth?
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