Gem-Knights

Master I from Bona on April 25th, 2026
Owned Cards
41 cards
N Rarity
Gem-Knight Sapphire
UR Rarity
Maxx "C"
UR Rarity
3 copies
Gem-Knight Nepyrim
N Rarity
Gem-Armadillo
SR Rarity
3 copies
Gem-Knight Quartz
UR Rarity
3 copies
Mulcharmy Fuwalos
UR Rarity
3 copies
Mulcharmy Purulia
SR Rarity
2 copies
Gem-Knight Hollowcore
UR Rarity
3 copies
Gem-Knight Dispersion
UR Rarity
Raigeki
UR Rarity
Harpie's Feather Duster
UR Rarity
Heavy Storm
SR Rarity
Gem-Knight Fusion
UR Rarity
Lightning Storm
UR Rarity
Triple Tactics Talent
UR Rarity
Sales Ban
UR Rarity
Triple Tactics Thrust
UR Rarity
3 copies
Brilliant Fusion
SR Rarity
Scatter Fusion
UR Rarity
2 copies
Super Polymerization
SR Rarity
2 copies
Book of Eclipse
UR Rarity
3 copies
Forbidden Droplet
UR Rarity
2 copies
Red Reboot
SR Rarity
Mudragon of the Swamp
SR Rarity
Gem-Knight Seraphinite
SR Rarity
Sea Monster of Theseus
SR Rarity
Gem-Knight Aquamarine
SR Rarity
Gem-Knight Ruby
SR Rarity
Gem-Knight Topaz
UR Rarity
Garura, Wings of Resonant Life
R Rarity
Gem-Knight Amethyst
UR Rarity
Gem-Knight Lady Rose Diamond
UR Rarity
Gem-Knight Master Diamond Dispersion
UR Rarity
Gem-Knight Master Diamond
SR Rarity
Predaplant Triphyoverutum
UR Rarity
Gem-Knight Lady Brilliant Diamond
UR Rarity
Light Dragon @Ignister
SR Rarity
Gem-Knight Phantom Quartz

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

Finally reached M1 on 24 April 2026.

The arrival of Kewl Tune really made going second gameplay very miserable. Still, with Gem-Knights you can recover banished cards via Phantom Quartz or GK Dispersion spell card. If GK Fusion is banished, then you just have to deal with it.

I decided to go with the Super Poly build as it looks like to be one of the best breakers against KT, but having it on hand does not guarantee a 100% win. There were games where my KT opponents know that I have Super Poly and still play around it.

Cue is annoying, but Reco is the most annoying card to deal with (for me personally) because it frequently messed up my gameplay by destroying my BriFu and ScaFu spells on my field.

I might try a different build for the next season, or maybe just not aim for a M1 at all considering the misery. But I am not sure how KT will perform with Synchro Overtake being limited to one for the next season.

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Replays

Profile ID: 404-164-441

So many new replays added because I stayed a lot in the M4-M3 bracket, even going up and down very often.

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