Magic: The Gathering · Authentication
Underground Sea: real vs fake
Underground Sea is the legendary dual land, one of the most sought-after cards in Vintage and Legacy, and therefore heavily faked and recolored. Alpha, Beta, Unlimited and Revised printings differ by border and corners, while authenticity comes down to the rosette and blue core. Photograph the card in LegitCheck AI to check these zones.
What to check on the Underground Sea
Model-specific zones — on top of the brand-level signs.
Identify the printing by border
Underground Sea was printed in Alpha, Beta, Unlimited and Revised, which differ by border and corners: Alpha/Beta are black-bordered (Alpha rounder), Unlimited/Revised are white-bordered. Printing drives both price and the fake tells to apply.
Rosette under a loupe
Under a loupe the artwork should break into the offset WotC rosette of dots. A linear dot grid, inkjet pixels or blur point to a fake or reprint.
Deckmaster back and registration
The Deckmaster back: correct colors, crisp printing and precise border alignment with the front. A front-to-back shift is typical of unauthorized printing.
Blue core at the edge
A genuine card shows the inner blue layer at the edge, also visible against the light on a slight flex. Do not bend the card to creasing — inspect the edge under bright light.
Font, copyright and cut
Check the title and text typeface, the artist and copyright line at the bottom, and the centering and border cut quality. A wrong font or uneven cut exposes a reprint or fake.
Where to inspect
The key zones to photograph and check on this type of item — a schematic, not a product photo.
- 1Corners and cut
- 2Centering
- 3Surface and gloss
- 4Edges and plies
- 5Print rosette
Photo angles for the check
- 1 Overall view
- 2 Logo / tag
- 3 Details & stitching
- 4 Material
Check your Underground Sea right now
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FAQ
How do I tell the Underground Sea printings apart?
Look at border and corners: Alpha and Beta are black-bordered (Alpha corners rounder), Unlimited and Revised are white-bordered. Compare against reference photos of each release, since price depends heavily on the printing.
Why is this dual land faked so often?
Dual lands like Underground Sea are staples of Vintage and Legacy and command high prices, making them targets for fakes and white-to-black border recoloring. Check the rosette, blue core and back registration.
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