Ultimate Flag

King of Games from SonicSmashBro on November 4th, 2026
Gems 16k + $8
Skill Power Rush
30 cards
UR Rarity
3 copies
Ultimate Flag Mech Gold Rush
UR Rarity
Steel Mech Lord Mirror Innovator
UR Rarity
3 copies
Ultimate Flag Mech Ace Breaker
UR Rarity
3 copies
The Ultimate Flag
SR Rarity
Ultimate Flag Beast Boltricorn
SR Rarity
2 copies
Ultimate Flag Beast Surge Bicorn
SR Rarity
3 copies
Ultimate Flag Beast Aim Eagle
R Rarity
3 copies
Ultimate Flag Beast Avant Wolf
UR Rarity
3 copies
Session Together!
UR Rarity
Pot of Greed
SR Rarity
3 copies
Ace Sword Slash
UR Rarity
Trap Hole
SR Rarity
3 copies
Shiny Shady

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
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- 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

What's this? Ace Breaker using it's OWN SKILL!? MADNESS! But seriously, I've finally found a viable deck that truly clicks with me! It's resource dependent and can brick going first yes, and it's also entirely outclassed by the Ether Dragon slop version, but don't underestimate Power Rush being able to guarantee Boltricorn for sealing off backrow for two turns, Ultimate Flag to recover your big bosses and Ace Sword Slash, and Aim Eagle to boost your big bosses to name a few things. We can also tech in one of my personal favorite boss monsters in Mirror Innovator for more recovery, big damage, and even piercing. With plenty of draw power to back this up, Ace Breaker can be a scary offensive presence, with just enough room for good defensive Traps that it's not too much of a glass cannon either!

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Replays

Replays with Commentary:

https://youtu.be/Fsknf8piX6k?t=440

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