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Caius the Mega Monarch card prices and values
There are 4 Caius the Mega Monarch cards and versions in our Yu-Gi-Oh price list. The most valuable is Caius the Mega Monarch SECE-EN035 from Secrets of Eternity at about $6.38 ungraded, and the highest PSA 10 value is Caius the Mega Monarch from Secrets of Eternity at about $112. Prices updated September 24, 2026.
| Card | Raw | PSA 9 | PSA 10 |
|---|---|---|---|
 Caius the Mega Monarch SECE-EN035Secrets of Eternity · 1st Edition | $6.38 | $19.99 | $112 |
| Caius the Mega Monarch SECE-EN035Secrets of Eternity · Unlimited | $5.39 | $33.75 | $46.00 |
 Caius the Mega Monarch MP15-EN2152015 Mega-Tins Mega Pack · 1st Edition | $4.88 | $33.65 | $103 |
 Caius the Mega Monarch SR06-EN008Structure Deck: Lair of Darkness · 1st Edition | $0.65 | $7.00 | $34.71 |
Sorted by ungraded price. Raw prices: TCGplayer market price. Graded values: PriceCharting. A dash means we do not show a graded value for that card. This is a guide, not financial advice.
Questions
Caius the Mega Monarch card questions
What is the most valuable Caius the Mega Monarch card?
Caius the Mega Monarch SECE-EN035 from Secrets of Eternity (1st Edition) at about $6.38 ungraded. The highest graded value is Caius the Mega Monarch from Secrets of Eternity at about $112 as a PSA 10.
How much is a Caius the Mega Monarch card worth?
It depends on the exact card and version. Caius the Mega Monarch cards in our list run from $0.65 to $6.38 ungraded. Find your card by its number in the table, then open it for the full prices.