Mathmech

Master I from
800-588-2300 EMPIRE
on February 28th, 2025
cp-ur 900 + cp-sr 390
42 cards
Effect Veiler
Dotscaper
3 copies
Maxx "C"
3 copies
Ash Blossom & Joyous Spring
Firewall Guardian
Mathmech Sigma
Mathmech Subtraction
Mathmech Diameter
3 copies
Mathmech Circular
3 copies
Firewall Defenser
3 copies
Mulcharmy Fuwalos
3 copies
Mulcharmy Purulia
2 copies
Parallel eXceed
3 copies
Nibiru, the Primal Being
2 copies
Cynet Mining
Mathmech Equation
3 copies
Small World
2 copies
Called by the Grave
Crossout Designator
3 copies
Infinite Impermanence
Mathmech Superfactorial
Cyberse Desavewurm
Enigmaster Packbit
2 copies
Primathmech Laplacian
Primathmech Alembertian
Number 41: Bagooska the Terribly Tired Tapir
Salamangreat Almiraj
Linguriboh
Link Decoder
Splash Mage
G Golem Crystal Heart
Transcode Talker
Decode Talker Heatsoul
Accesscode Talker
Firewall Dragon Darkfluid - Neo Tempest Terahertz

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

Notable Changes From Season 37 (Diamond)

New list with a bunch of handtraps I made for the Master climb post-Fiendsmith. See below for the S37 Diamond version

https://www.masterduelmeta.com/top-decks/master-v/february-2025/mathmech/800-588-2300-empire/QLMax

I think going 2nd took a big hit with all the powerful engines introduced in The Forbidden Liberated (Millennium, Azamina, Fiendsmith) that push going 1st. I think I had to play a bunch of handtraps to solve this, which is the main advantage this deck has but by a small margin.

I had Retaliating "C" at first but I think it created awkward gamestates even when it resolved without a generic link like I:P in my extra. It's one of the best trades against Hallowed Azamina but this deck has trouble removing it and dealing with my opponent's half-board if they decide to play it out instead of scooping. For example, Circular has to send from deck to cost and cannot activate under Retaliating "C" so there are times I need to use my normal summon to Xyz summon with Retaliating to get rid of it.

Droll, Ogre, Nibiru felt very good. Ogre was able to trade with Deception and Millenium cards but it gets better if you have other handtraps. Droll comes up often with Fuwalos where people will have an out for one of them, but you have the other to force them to play it out. It's very similar to having double Fuwalos or Maxx "C" + Fuwalos. Droll isn't foolproof since it prevents everything except the Fiendsmith combo which is why I value Nibiru so much. These pairings ended up working well - for example Ogre + Ash Blossom for both the Tenpai S/T ensured you survived almost always.

I want to try Belle if I can, Purulia may be able to contribute as well.

For the Extra Deck, I tried Bagooska, Heatsoul, 2nd Laplacian. I think Heatsoul endboards were fine. My main gripe was that Heatsoul could not be used as Fuwalos counter play instead of I:P. I'd control 2 LIGHTS (Diameter & Circ) so I couldn't go straight to Heatsoul - made me miss I:P into S:P. Bagooska came up like twice. At the end of the day, these flex spots are for specific situations.

Matchup Breakdown in Master (122 Duels; 58 Heads, 64 Tails)

Due to Tenpai's influence: 66 1st, 56 2nd

Matchup Breakdown in Total (166 Duels; 80 Heads, 86 Tails)

Due to Tenpai's influence: 89 1st, 77 2nd

  • 18 Tenpai (10.8%, W/R = 61%)
  • 17 SEFS Azamina (10.2%, W/R = 58%)
  • 13 Millennium (7.8%, W/R = 38%)
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Replays

Follow me on Master Duel! ID: 122-966-180

I streamed most of my climb on my twitch: mybodyisregi The bulk of my climbs can be found in my S38 Ranked Climb in the Collections tab.

twitch . tv / mybodyisregi

I dual stream on youtube as well, the last VOD got copyright blocked but it'll be back.

https://www.youtube.com/playlist?list=PLaFh6a-hf3oDkZc-TEZ1fhQZNH-i3OQUZ

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