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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 $6.29 ungraded, and the highest PSA 10 value is Caius the Mega Monarch from Secrets of Eternity at about $105. Prices updated November 8, 2026.
| Card | Raw | PSA 9 | PSA 10 |
|---|---|---|---|
 Caius the Mega Monarch SECE-EN035Secrets of Eternity · 1st Edition | $6.29 | $19.99 | $105 |
| Caius the Mega Monarch SECE-EN035Secrets of Eternity · Unlimited | $5.87 | $30.62 | $46.00 |
 Caius the Mega Monarch MP15-EN2152015 Mega-Tins Mega Pack · 1st Edition | $4.50 | $33.65 | $104 |
 Caius the Mega Monarch SR06-EN008Structure Deck: Lair of Darkness · 1st Edition | $0.64 | $7.00 | $34.56 |
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 $6.29 ungraded. The highest graded value is Caius the Mega Monarch from Secrets of Eternity at about $105 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 $0.64 to $6.29 ungraded. Find your card by its number in the table, then open it for the full prices.