Eidos the Underworld Monarch (Starlight Rare)
Yu-Gi-Oh! · Duelist's Advance · Starlight Rare · DUAD-EN017
Released 2025-07-04
$21.99
30-day forecast: $23.00
Live Yu-Gi-Oh! price tracking, buyout detection, and price predictions for Eidos the Underworld Monarch (Starlight Rare) on TCG Collector Tools.
Card Text
Effect Monster · Spellcaster · DARK · Level 6 · ATK 2400 · DEF 1000 · Monarch archetype
If this card is Normal or Special Summoned: You can add 1 "Monarch" Spell/Trap or 1 monster with 2800 ATK/1000 DEF from your Deck or GY to your hand. You can declare 1 Attribute; make 1 face-up monster on the field become that Attribute. If you Tribute Summon a monster with 2400 or more ATK and 1000 DEF, while this card is in your GY: You can add this card to your hand or Special Summon it. You can only use each effect of "Eidos the Underworld Monarch" once per turn.
Prices Across Marketplaces
Price Forecast
| Horizon | Forecast | vs Today |
|---|---|---|
| 7 days (stable) | $22.99 | +4.5% |
| 30 days (stable) | $23.00 | +4.6% |
| 90 days | $28.19 | +28.2% |
| 180 days | $28.19 | +28.2% |
| 1 year | $28.19 | +28.2% |
Confidence 84% · Calibrated 30-day range $18.73–$27.27 · mature 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 2026-03-30 · at $35.99 · 121 days ago.
| Horizon | We predicted | Actual | Error |
|---|---|---|---|
| Day 7 | $34.16 | $37.70 | +10.4% |
| Day 30 | $33.60 | $36.99 | +10.1% |
| Day 90 | $34.32 | $29.95 | -12.7% |
Signal Analysis
Mixed signals. Monitor for clearer direction.
Printings (2)
| Set | Code | Rarity | Price |
|---|---|---|---|
| Duelist's Advance | DUAD-EN017 | Starlight Rare | — |
| Duelist's Advance | DUAD-EN017 | Ultra Rare | — |
Recent Price History
Frequently Asked Questions
How much is Eidos the Underworld Monarch (Starlight Rare) worth?
Eidos the Underworld Monarch (Starlight Rare) is currently $21.99 on TCGplayer for the Duelist's Advance printing. Prices update daily from live marketplace data.
Is Eidos the Underworld Monarch (Starlight Rare) going up or down in price?
Our 30-day forecast for Eidos the Underworld Monarch (Starlight Rare) is $23.00, with a stable trend at 84% confidence.
How many times has Eidos the Underworld Monarch (Starlight Rare) been printed?
Eidos the Underworld Monarch (Starlight Rare) has 2 known printings, including Duelist's Advance, Duelist's Advance.