Gem-Knights

Master I from MisterPotato on June 28th, 2026
cp-ur 1020 + cp-sr 450
40 cards
SR Rarity
2 copies
Droll & Lock Bird
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
2 copies
Mulcharmy Purulia
SR Rarity
2 copies
Gem-Knight Hollowcore
UR Rarity
3 copies
Gem-Knight Dispersion
UR Rarity
Harpie's Feather Duster
UR Rarity
Heavy Storm
SR Rarity
Gem-Knight Fusion
UR Rarity
2 copies
Lightning Storm
UR Rarity
Triple Tactics Talent
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
The Fallen & The Virtuous
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
SR Rarity
Gem-Knight Prismaura
UR Rarity
Gem-Knight Lady Rose Diamond
UR Rarity
Gem-Knight Master Diamond Dispersion
UR Rarity
Gem-Knight Master Diamond
UR Rarity
Gem-Knight Lady Brilliant Diamond
UR Rarity
Ecclesia and the Dark Dragon
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

This season was very hard, at one point I deranked from Master 2 to Master 5 in about 10 matches. Konami is doing everything in their power to punish the going second players, new archetypes always have some random effects to hand peek, hand rip, search/add handtraps, plus in cards for no actual cost, etc... Many times you manage to break their board or exhaust all their known interuptions only for your OTK push to be be negated with a hand trap...

Everyone is now also running floodgates, F&V and Ghost Belle as well which complicates things a lot. With direction Konami is taking, it's gonna become even worse once Toons are released

Gem-Knight is still a very good and resilient deck, the format is just annoying for them. You can casually reach Master but if you want to reach Master 1, you have to grind and sweat a bit. I have also managed to reach top 10k in WCQ with this deck.

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Replays

ID: 509-363-327

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