Subterror

King of Games from
The Utalawea
 on September 30th, 2025
Gems 59k
Skill Nemesis of the Underground Terror
23 cards
Lord of the Heavenly Prison
Effect Veiler
Effect Veiler
Subterror Behemoth Umastryx
Subterror Guru
Subterror Guru
Subterror Guru
Subterror Fiendess
Subterror Fiendess
Subterror Fiendess
Subterror Behemoth Ultramafus
Subterror Nemesis Archer
The Hidden City
The Hidden City
The Hidden City
Terraforming
Pot of Duality
Subterror Cave Clash
Dogmatika Punishment
Needle Ceiling
Needle Ceiling
Subterror Final Battle
Subterror Final Battle
Dragon Master Knight
Invoked Mechaba
Fossil Warrior Skull Knight
Fossil Machine Skull Wagon
Cyber Dragon Nova
Number C39: Utopia Ray
Number 39: Utopia
Number S39: Utopia the Lightning
Subterror Behemoth Fiendess

Prerequisites

  • A registered Konami ID linked to your master duel game
  • Must login to Yu-Gi-Oh! Cards DB using the same Konami ID
  • If the Yu-Gi-Oh! DB website asks to login with Game Card ID just click "I don't have a game card ID" and fill some basic information to proceed

Export Guide

- Via the MDM extension (Recommended): Download on Firefox, or Chromium Browsers
For Chromium browsers (Chrome/Edge/Opera/Brave...etc) just click "Add to chrome" on the store page and it'll work on most if not all chromium browsers.
After using the extension, go to the Master Duel game => Main menu => Deck option => The Card database option at the top right corner => locate the deck you exported and copy it
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- Manually
  1. Click here to copy the export code
    2.
  2. Go to Yu-Gi-Oh! Cards DB and click My Deck => Add a Deck
  3. Once the deck page loads click Edit then do one of the following based on the platform your device is running:
    • (PC Only): Press F12 to open the DevTools window => Navigate to the Console tab in the window => Paste the export code => Hit Enter
    • OR (Other platforms/PC): In the address bar of the current tab remove the URL and type "javascript:" without the quotations then paste the export code, then if you're on mobile look for the *globe* icon and tap on it to run the code (Chrome only), for PC users just hit enter.
  4. The deck will save automatically
  5. Go to the Master Duel game => Main menu => Deck option => The Card database option at the top right corner => locate the deck you exported and copy it

Click here for a more detailed guide

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