Mathmech Deck #655552 — Yu-Gi-Oh! Master Duel
41 Main, 15 Extra, incl. Firewall Defenser x3, Mathmech Circular x3, Mulcharmy Fuwalos x3. Created Mar 1, 2026 by YGO Mod.
Created by: YGO Mod (20517634)
Created On: 03/01/2026
Main Deck (41)
- Droll & Lock Bird x2
- Firewall Defenser x3
- Firewall Guardian x1
- Mathmech Addition x1
- Mathmech Circular x3
- Mathmech Subtraction x1
- Maxx "C" x2
- Micro Coder x1
- Mulcharmy Fuwalos x3
- Mulcharmy Purulia x3
- Nibiru, the Primal Being x3
- Wizard @Ignister x1
- Ash Blossom & Joyous Spring x3
- Backup @Ignister x3
- Mathmech Diameter x1
- Mathmech Sigma x1
- A.I. Connect x1
- A.I. Meet You x2
- Called by the Grave x1
- Crossout Designator x1
- Infinite Impermanence x3
- Mathmech Superfactorial x1
Extra Deck (15)
- Cyberse Desavewurm x1
- Accesscode Talker x1
- Allied Code Talker @Ignister x1
- Cyberse Wicckid x1
- Decode Talker Heatsoul x1
- Firewall Dragon Darkfluid - Neo Tempest Terahertz x1
- G Golem Crystal Heart x1
- Linguriboh x1
- Link Decoder x1
- Salamangreat Almiraj x1
- Splash Mage x1
- Transcode Talker x1
- Firewall Saber Dragon x1
- Primathmech Alembertian x1
- Primathmech Laplacian x1
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Deck — Deck Power Evaluation
Final Contextual Deck Power: 25/100 (Confidence: Low)
- Primary strategy: Midrange
- Secondary strategies: Toolbox, Tempo
- Format: master-duel
Legality
Main 41 / Extra 15 / Side 0 — status under the rules at evaluation time: Illegal. 2 violation(s).
Identity & game plan
- Win condition: Link and Xyz pressure from Cyberse and Mathmech monsters once a Cyberse starter is live (Inferred from card text; no recorded boards); Synchro and Xyz follow-up (Primathmech Laplacian and Alembertian, Firewall Saber Dragon) when the Extra Deck is accessible
- Turn 1 (going first): Open with an A.I. or Cyberse starter, search an @Ignister or Mathmech piece, and link into a Link-3 or Link-5 board while hand traps protect the first summon (Inferred)
- Turn 2 (going second): Use the hand traps (Ash Blossom, Infinite Impermanence, Droll and Lock Bird, Maxx C, Nibiru) to disrupt the opponent's first summon and then convert with the Link Monsters (Inferred)
- Recovery: Recycle Mathmech and Cyberse monsters from the GY through Mathmech Circular, Backup @Ignister and Link Monster GY effects; the GY recursion text is present but unquantified (Inferred)
- After siding: Not evaluable: the deck has no Side Deck (Side Deck size 0), so there is no post-side plan
Why it scores here
The deck is Illegal in Master Duel: it runs 2 copies of Maxx "C" against a limit of 1 and 1 copy of Forbidden Called by the Grave, so the score is a structural, theoretical read capped at 25, not a normal Final Contextual score. Structurally the 12-card Mathmech/Cyberse core is reasonably accessible (P(at least one core card in a 5-card opening hand) ≈ 0.84, Inferred), and the 11-Link Extra Deck gives real closing pressure. Consistency is held back by a heavy non-engine density (13 hand traps, 15 tech slots, 46 of 57 main/extra copies outside the exact Mathmech name), which raises brick and dead-card risk. With no recorded boards (combo data has 0 parseable boards), the combo ceiling and median are text-only inference and carry low weight. The score comes from consistency, interaction and Extra Deck coverage on the system, not from the popularity of the Mathmech archetype, and no card scores were averaged.
Dimension scores
| # | Dimension | Score | Evidence |
|---|---|---|---|
| D1 | Engine Accessibility & Consistency | 62 | P(at least one Mathmech/Cyberse starter in 5 cards) ≈ 0.84 across the 12-copy core group; 2-card bootstrap likely via A.I. Meet You and Backup @Ignister (Inferred) |
| D2 | Opening-Hand Quality & Brick Management | 45 | 13 hand traps and 15 tech slots compete for the same 40 main-deck slots, and 11 copies are singletons, so dead-card risk is high (Inferred) |
| D3 | Combo Conversion & Ceiling | 45 | No parseable recorded boards; ceiling inferred from Link and Xyz text (Primathmech, Transcode Talker, Accesscode Talker) with no measured PowerIndex (Inferred) |
| D4 | Combo Floor & Median Output | 40 | No recorded median output; floor depends on hand-trap and tech density that does not add board presence (Inferred) |
| D5 | Interruption Resilience & Route Redundancy | 55 | Several independent Cyberse and Mathmech starters and GY recursion give multiple routes after a single disruption (Inferred) |
| D6 | Resource Economy, Recovery & Grind | 40 | Recursion exists in Mathmech Circular, Backup @Ignister and Link Monster GY effects, but no resource or net-advantage data is available (Inferred) |
| D7 | End-Board & Interaction Quality | 55 | Ash Blossom, Infinite Impermanence, Droll and Lock Bird, Nibiru and Crossout Designator give layered interaction, but Called by the Grave is illegal in-format (Inferred semantic read) |
| D8 | Going-Second & Board-Breaking Power | 45 | Going-second is covered by hand traps and Maxx C, but there are no going-second board-breaking pieces beyond Crossout Designator and Called by the Grave (Inferred) |
| D9 | Offensive Pressure & Closing Power | 45 | Link-5 Firewall Dragon Darkfluid and Allied Code Talker give 3000 and 2300 ATK bodies; closing relies on reaching a Link-5 field (Inferred) |
| D10 | Main Deck Efficiency & Flexibility | 50 | 41 main cards with 22 distinct cards and 46 off-archetype exact-name copies (purity 17.9%) lower coherence and compactness (Verified composition) |
| D11 | Extra Deck Efficiency & Coverage | 60 | Extra Deck is 15 cards with 11 Link monsters and a Link-5 finisher; it uses the limited slots well but depends on several Cyberse Link pieces (Verified composition) |
| D12 | Side Deck Adaptability | 10 | Side Deck is empty (Side Deck size 0), so there is no post-side adaptation at all (Verified) |
| D13 | Matchup Coverage & Format Fit | 50 | No dated metagame sample or tournament link; archetype meta-share is absent, so the format-fit read is provisional (Provisional) |
| D14 | Pilotability & Error Tolerance | 45 | The deck needs Link and Xyz sequencing with hand-trap timing; the decision load is high even though the step count is unknown (Inferred) |
How the score was computed
Strategy profile: Midrange primary with Toolbox secondary; the Midrange profile is used as the base weights. Modifiers: none.
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