The Green Dot Test: Checking the Back-Side Microprint
Inside the green dot on the card back, genuine cards hide four tiny red dots in an L-shape — a microprint many fakes miss.
What this checks
A specific microprint detail within the green area of the card back. Genuine printing resolves four red dots in an L-shape inside a small yellowish patch, ringed by a solid black circle.
Tools: Loupe (30–60x)

Image via Scryfall · © Wizards of the Coast.
Genuine looks like
Four red dots clearly visible in an L-shape, surrounded by an unbroken, deep-black circle.
Fake looks like
The red dots are missing entirely, smeared together, or the black ring is broken, grey, or muddy.
Step by step
- 1Turn the card to its back and find the green dot near the center.
- 2Hold a loupe over the green dot under bright light.
- 3Look inside for a small lighter patch.
- 4Check whether four distinct red dots form an L-shape inside it.
- 5Note a missing or smeared pattern as a strong counterfeit signal.
Why it matters
This microprint is extremely hard to reproduce. Its absence is one of the most-cited tells in the community.
Further reading
Related methods
Educational guidance only — no method is a guarantee of authenticity. When in doubt on a valuable card, consult a professional grading or authentication service.