Gem-Knights

Master I from MisterretsiM on June 7th, 2026
cp-ur 1050 + cp-sr 360
40 cards
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
SR Rarity
Dark Hole
UR Rarity
Raigeki
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
2 copies
Ultimate Slayer
UR Rarity
2 copies
Triple Tactics Thrust
UR Rarity
Illusion Gate
UR Rarity
3 copies
Brilliant Fusion
SR Rarity
Scatter Fusion
UR Rarity
Called by the Grave
UR Rarity
3 copies
Forbidden Droplet
UR Rarity
Elder Entity N'tss
SR Rarity
Gem-Knight Seraphinite
SR Rarity
Gem-Knight Aquamarine
SR Rarity
Gem-Knight Ruby
SR Rarity
Gem-Knight Topaz
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
SR Rarity
Golden Cloud Beast - Malong
UR Rarity
Light Dragon @Ignister
SR Rarity
Mereologic Aggregator
SR Rarity
2 copies
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

Decided to challenge myself by reaching Master 1 at the beginning of the season instead of the end, and I used going-2nd Gem-Knights once again.

It was ****. I was stuck going from Master 5 to Master 3 and back for hours. Thankfully once I got to M2 I didn't derank again. Had a lot of issues with bad hands/bad draws, like drawing nothing but more engine if my opponent gave me draws off a Mulcharmy, and at one point I hard opened Gem-Knight Fusion 4 duels in a row. Luck was not on my side this season

The decklist went through some changes from last season. I took out Droll for Heavy Storm and a third Purulia, and replaced one of the Raigeki with a 2nd Lightning Storm. I found that backrow removal was way more important this seasons. Also added Dark Hole because early on I faced a lot of Orcust/RB decks that were putting a token on my field with Girsu and turning off Lightning Storm

The other big change was taking out Book of Eclipse for Ultimate Slayer. Eclipse wasn't getting the job done for me, so I wanted to try something new, and Ultimate Slayer did pretty well. Sending N'tss to get rid of both a Branded fusion monster and a set copy of The Fallen and The Virtuous ended up winning me several games. Malong was good for clearing KT boards, and Aggregator for negating/removing Caesar. I would say it was mostly worth it but sometimes it was kinda bricky. Hard to say if Super Poly would've been better in its place

Match ups: -KT was usually in my favor but I ran into a lot of KT-Elfnote in Master and that was a bigger toss-up. There were some boards I still can't believe I played through -Branded was almost always a win. Backrow removal took care of most of their interruption, and knowing when to disrupt their quick effect fusions made things a lot easier. The Dracotail variant was not as favorable -Enneacraft was an easy win 90% of the time. That deck is so boring to face. The games I lost were almost exclusively due to floodgates -Maliss was the bane of my existence and I ran into it a lot in Master. I always felt like I was one interaction away from winning -Orcust was much the same, but slightly more favorable -SS I usually did well against if I opened backrow hate, same with RT -VSK9 I did surprisingly well against compared to last season

Didn't run into any other deck as consistently

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