Carnot the Eternal Machine (Quarter Century Secret Rare)
Yu-Gi-Oh! · Phantom Nightmare · Quarter Century Secret Rare · PHNI-EN024
Released 2024-02-09
$11.75
30-day forecast: $11.76
Live Yu-Gi-Oh! price tracking, buyout detection, and price predictions for Carnot the Eternal Machine (Quarter Century Secret Rare) on TCG Collector Tools.
Card Text
Effect Monster · Machine · LIGHT · 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.
Prices Across Marketplaces
Price Forecast
| Horizon | Forecast | vs Today |
|---|---|---|
| 7 days (stable) | $11.76 | +0.1% |
| 30 days (stable) | $11.76 | +0.1% |
| 90 days | $11.53 | -1.9% |
| 180 days | $11.53 | -1.9% |
| 1 year | $11.53 | -1.9% |
Confidence 74% · Calibrated 30-day range $10.85–$12.67 · established card · veryLow volatility
Our Forecast Track Record
What we predicted for this card, and what actually happened. We publish misses as well as hits. Anchored 2026-03-27 · at $12.70 · 124 days ago.
| Horizon | We predicted | Actual | Error |
|---|---|---|---|
| Day 7 | $13.08 | $13.36 | +2.1% |
| Day 30 | $13.04 | $12.51 | -4.1% |
| Day 90 | $13.01 | $12.38 | -4.8% |
Signal Analysis
Mixed signals. Monitor for clearer direction.
Printings (2)
| Set | Code | Rarity | Price |
|---|---|---|---|
| Phantom Nightmare | PHNI-EN024 | Quarter Century Secret Rare | — |
| Phantom Nightmare | PHNI-EN024 | Ultra Rare | — |
Recent Price History
Frequently Asked Questions
How much is Carnot the Eternal Machine (Quarter Century Secret Rare) worth?
Carnot the Eternal Machine (Quarter Century Secret Rare) is currently $11.75 on TCGplayer for the Phantom Nightmare printing. Prices update daily from live marketplace data.
Is Carnot the Eternal Machine (Quarter Century Secret Rare) going up or down in price?
Our 30-day forecast for Carnot the Eternal Machine (Quarter Century Secret Rare) is $11.76, with a stable trend at 74% confidence.
How many times has Carnot the Eternal Machine (Quarter Century Secret Rare) been printed?
Carnot the Eternal Machine (Quarter Century Secret Rare) has 2 known printings, including Phantom Nightmare, Phantom Nightmare.