Gem-Knights

Master I from
Tengosida
on October 31st, 2025
cp-ur 960 + cp-sr 360
40 cards
2 copies
Maxx "C"
3 copies
Gem-Knight Nepyrim
2 copies
Gem-Armadillo
3 copies
Gem-Knight Quartz
2 copies
Santa Claws
2 copies
Gem-Knight Hollowcore
3 copies
Gem-Knight Dispersion
Harpie's Feather Duster
Heavy Storm
Gem-Knight Fusion
2 copies
Lightning Storm
2 copies
Triple Tactics Talent
2 copies
Sales Ban
2 copies
Triple Tactics Thrust
3 copies
Brilliant Fusion
Scatter Fusion
3 copies
Forbidden Chalice
3 copies
Forbidden Droplet
2 copies
Red Reboot
Gem-Knight Seraphinite
Gem-Knight Lady Lapis Lazuli
Gem-Knight Aquamarine
Gem-Knight Ruby
Gem-Knight Topaz
Gem-Knight Prismaura
Gem-Knight Amethyst
Gem-Knight Lady Rose Diamond
Gem-Knight Master Diamond Dispersion
Gem-Knight Master Diamond
Gem-Knight Lady Brilliant Diamond
2 copies
Gem-Knight Phantom Quartz
S:P Little Knight
Apollousa, Bow of the Goddess

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
Don't show this again
- 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

Notes & Combos

I was experimenting with Polymerization and Change of Heart — with that setup I made it up to Master 5. Then, since I couldn’t climb any higher, I switched to this M1 build made by NevGuy that he posted on this site. It’s really good, especially against Orcust and Mitsurugi, which you see a lot in higher ranks. Definitely the best build. I had a 15-win streak, nonstop until Master 1. I never used Amethyst or Apollousa — S:P came in clutch during a duel against Orcust when they activated their Crown card against S:P. I think I only used Seraphinite once, and I wouldn’t swap out Lapis. Her effect really came in clutch in some matches. Definitely a very strong deck on its own; the key is the non-engine part, and this one works right now. No replays :(, next season will be a lot, this is my first time reaching Master 1.

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