YuGiOh Master Duel Gem Knight Deck

YuGiOh Master Duel Gem Knight Deck
Images via Konami

Written by 

Tarran Stockton


13th May 2022 17:19

Our YuGiOh Master Duel Gem Knight deck is one of the better one-turn kill decks in the game, thanks to its powerful card effects. With many decks and card combinations to choose from in YuGiOh, it can be hard to know what works well, especially with a the series' twenty year history. So read on for our full breakdown of how to build a strong YuGiOh Master Duel Gem Knight deck. 

YuGiOh Master Duel Gem Knight Deck: What Cards Are Needed?

YuGiOh Master Duel Gem Knight Deck
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The main card archetypes you will need for building this deck are Pyroxene Relinquished and Natural Relinquished, with a select few cards from the Exquisite Jet-Black Rose pack. You should be able to get the majority of cards with these packs, but you can craft the rest. It's also worth noting the crafting cost of this entire deck is fairly hefty, so relying on secret packs for the higher rarity cards is a must if you aren't rich in resources. 

To build the YuGiOh Master Duel Gem Knight Deck, here are the following cards you will need:



  • Gem-Knight Lapis x3
  • Gem-Knight Lazuli x3
  • Crystal Rose x3
  • Adamancipator Researcher x3
  • Lonefire Blossom x2
  • Gem-Knight Obsidian x2
  • Predaplant Ophrys Scorpio x1
  • Predaplant Darlingtonia Cobra x1
  • Gem-Knight Alexandrite x3
  • Gem-Armadillo x2
  • Block Dragon x3


  • Reasoning x3
  • Terraforming x1
  • Gem-Knight Fusion x2
  • Black Garden x1
  • Chicken Game x3
  • Brilliant Fusion x1
  • De-Fusion x1
  • Called by the Grave x2

Extra Deck

  • Gem-Knight Seraphinite x1
  • Gem-Knight Lady Lapis Lazuli x3
  • Gem-Knight Master Diamond x3
  • Gem-Knight Lady Brilliant x1
  • Leviair the Sea Dragon x1
  • Gem-Knight Phantom Quartz x1
  • Union Carrier x1
  • Predaplant Verte Anaconda x1
  • Knightmare Unicorn x1
  • Saryuja Skull Dread x1
  • Accesscode Talker x1

Your main goal when playing with this deck is to special summon the Gem-Knight Lady Lapis Lazuli and Gem-Knight Master Diamond, so you can one-hit the enemy for 8000+ damage. There are many cards that allow for this easily, and there are other specific combos, like summoning Seraphinite with the Brilliant Fusion card. You obviously have a lack of trap cards with this deck, so it can be detrimental in the long run and your main goal is always the OTK.

That's our full card list and basic strats for an effective YuGiOh Master Duel Gem Knight deck that you can employ to get one-turn kills.

If you're more interested in the single-player component of the game, then take a look at our primer on the YuGiOh Master Duel Solo Mode.


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