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The Agent of Mystery - Earth card prices and values
There are 4 The Agent of Mystery - Earth cards and versions in our Yu-Gi-Oh price list. The most valuable is The Agent of Mystery - Earth (Quarter Century Secret Rare) RA04-EN146 from Quarter Century Stampede at about $4.14 ungraded, and the highest PSA 10 value is The Agent of Mystery - Earth (Platinum Secret Rare) from Quarter Century Stampede at about $41.26. Prices updated November 9, 2026.
| Card | Raw | PSA 9 | PSA 10 |
|---|---|---|---|
 The Agent of Mystery - Earth (Quarter Century Secret Rare) RA04-EN146Quarter Century Stampede · 1st Edition | $4.14 | — | — |
 The Agent of Mystery - Earth SDLS-EN002Structure Deck: Lost Sanctuary · 1st Edition | $0.39 | $7.00 | $38.44 |
 The Agent of Mystery - Earth (Platinum Secret Rare) RA04-EN146Quarter Century Stampede · 1st Edition | $0.33 | $9.34 | $41.26 |
 The Agent of Mystery - Earth GFP2-EN050Ghosts From the Past: The 2nd Haunting · 1st Edition | $0.27 | $6.00 | $31.34 |
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
The Agent of Mystery - Earth card questions
What is the most valuable The Agent of Mystery - Earth card?
The Agent of Mystery - Earth (Quarter Century Secret Rare) RA04-EN146 from Quarter Century Stampede (1st Edition) at about $4.14 ungraded. The highest graded value is The Agent of Mystery - Earth (Platinum Secret Rare) from Quarter Century Stampede at about $41.26 as a PSA 10.
How much is a The Agent of Mystery - Earth card worth?
It depends on the exact card and version. The Agent of Mystery - Earth cards in our list run from $0.27 to $4.14 ungraded. Find your card by its number in the table, then open it for the full prices.