Mathmech

Master I from
Lordcooler90
on October 8th, 2025
cp-ur 630 + cp-sr 480
40 cards
PSY-Frame Driver
3 copies
Droll & Lock Bird
Dotscaper
Micro Coder
2 copies
Maxx "C"
PSY-Framegear Gamma
Ghost Ogre & Snow Rabbit
3 copies
Ash Blossom & Joyous Spring
Code of Soul
3 copies
Backup @Ignister
Firewall Guardian
Mathmech Multiplication
Mathmech Sigma
Mathmech Subtraction
Mathmech Diameter
3 copies
Mathmech Circular
3 copies
Firewall Defenser
Wizard @Ignister
2 copies
Parallel eXceed
2 copies
A.I. Connect
2 copies
Cynet Mining
2 copies
Called by the Grave
Crossout Designator
Mathmech Superfactorial
Cynet Conflict
Cyberse Desavewurm
Primathmech Laplacian
Primathmech Alembertian
Allied Code Talker @Ignister
Link Spider
Salamangreat Almiraj
Linguriboh
Link Decoder
Cyberse Wicckid
Splash Mage
G Golem Crystal Heart
Transcode Talker
Decode Talker Heatsoul
Firewall Dragon Darkfluid - Neo Tempest Terahertz
Firewall Dragon Singularity

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

Navigating to M1 this season was a bit annoying with the current meta. Not only is going second almost a guaranteed loss if you don't draw a 'mini-game' card, but going first and getting Maxx "C"'d or Charmy'd is an absolute loss. I started the season running three Charmy and Lancea's, but switched to a more defensive tactic by running 10 anti-'MaxxC' cards (3x Droll & Lock Bird, 1x Gamma, 3x Ash Blossom, 2x Called by the Grave, and 1x Crossout Designator). These also helped the going-second climb against Ryzeal and Blue Eyes (which is kinda prevalent). Code of Soul being able to link Terrahertz board into Allied felt good after I had exhausted my interruptions, or linking the Allied end board into Singularity for a couple of bounces if needed. I stopped playing Accesscode Talker around M3 because it didn't really do enough against the fast-paced Maliss and Ryzeal opponents."

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Replays

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