Mathmech Deck #762324 — Yu-Gi-Oh! Duel Links

Deck — Deck Power Evaluation

Final Contextual Deck Power: 61/100 (±8 · Confidence: Medium)

• Primary strategy: Combo
• Secondary strategies: Midrange, Tempo
• Format: duel-links

Legality

Main 26 / Extra 9 / Side 0 — status: Legal.

Identity & game plan

• Win condition: Extra Deck attackers (Geomathmech Final Sigma x2, Primathmech Laplacian x2, Geomathmech Magma, S-Force Justify, Decode Talker Heatsoul) reached through a Cyberse summon chain started from hand or GY (Inferred from card text); Disruption and negation (Droll & Lock Bird x3, Forbidden Droplet x3, Splash Mage, S-Force Justify) that slows the opponent while the Extra Deck boss is assembled (Inferred)
• Turn 1 (going first): Open with Mathmech Diameter, Mathmech Sigma or Mathmech Addition/Subtraction as the starter, chain into Nabla or Multiplication for level and Cyberse support, then Synchro or Xyz into a 2000-3000 ATK boss (Inferred from text; no recorded boards)
• Turn 2 (going second): Hold Droll & Lock Bird and Forbidden Droplet to answer the opponent's first board, then rebuild through GY resummons (Diameter, Equation, Superfactorial) into the Extra Deck boss (Inferred)
• Recovery: Resummon Level 4 Cyberse monsters from the GY (Diameter, Equation), use Superfactorial from the GY for a Synchro with Mathmech GY monsters, and re-enter with the second copy of each boss (Inferred from text)
• After siding: Not applicable: Duel Links is a single match with no side deck (side_count 0)

Why it scores here

The deck reliably opens: nine copies of Diameter, Sigma and Nabla, plus Addition and Subtraction, give about an 87% chance of at least one starter in a 5-card opening hand, a high-consistency read computed from the hypergeometric table (Inferred). It converts through redundant Extra Deck bosses (2 Final Sigma, 2 Laplacian, Magma, Justify, Heatsoul) whose ATK reaches 2300-3000, which earns the closing-power score (Verified stats, Inferred closing). It survives disruption through three independent starter families, GY resummons and Deck summons, and interaction from Droll & Lock Bird, Forbidden Droplet and the Synchro/Link negations (Inferred from text). The score is held down by nine non-engine main slots (Droll, Droplet, Book of Eclipse), the lack of any recorded board sample for median output, and the single-copy Limited Superfactorial. Popularity and the guide's tier-3 mention did not add points, and the score was not produced by averaging individual card scores.

Dimension scores

How the score was computed

Strategy profile: Combo. Structural ≈ 64, Going First ≈ 67, Going Second ≈ 66, Meta = provisional, Tournament Reliability ≈ 64. Modifiers: non-engine main slots (-2); banlist exposure (-1). Final formula: 0.80*Structural + 0.20*TournamentReliability (Meta provisional); Structural 64.27, TR 64.15, pre-modifier 64.25, modifiers -3 => 61

Probability & combo summary

• Opening a starter: P(≥1) ≈ 0.87 · key two-card combo ≈ — · full-brick estimate ≈ 0.13 (all Inferred)
• Combo output: best PowerIndex —, median —, board-per-starter —
• Turn order: 0 going-first lines vs 0 going-second lines

Strengths

• Three Level-4 Tuner starters with 9 copies give a high opening starter rate (Inferred 0.87)
• Extra Deck has redundant bosses: 2 Final Sigma and 2 Laplacian
• Layered negation and destruction through Droll, Droplet, Induction, Magma and Justify
• GY recursion gives multiple restarts after disruption

Weaknesses

• Nine non-engine main slots (35%) dilute the engine
• No recorded boards, so the combo floor and median are unmeasured
• Single-copy Limited Superfactorial is a critical recursion piece with no backup
• Extra Deck off-engine slots (Justify, Splash Mage, Heatsoul, Dugares) need Cyberse support

Critical choke points

• Starter from hand (Diameter, Sigma, Addition or Subtraction) must land before the Extra Deck boss can be built (Inferred)
• Superfactorial is a one-copy recursion route

Recommended changes

Evidence & confidence

• Verified: Legality: 26 Main, 9 Extra, 0 Side within Duel Links size rules; Mathmech Superfactorial Limited with 1 copy run and 1 legal; Card text and stats for every listed card; Usage statistics: 10 of 19 core cards present by flag; 16 of 19 by card_id (see data_gaps); Composition counts: 17 of 26 main slots Mathmech-named; 9 non-engine main slots
• Inferred: Starter probability 0.87 and full-brick estimate 0.13 (hypergeometric); Going-second hand-trap probability 0.56; Combo lines and summon chains derived from card text only; Interaction and closing reads from text flags; Scores for D1-D11, D14
• Provisional: Meta Power (null) and D13 format fit; D12 side adaptability is a neutral placeholder (no side deck)
• Data gaps: No combos supplied: combo floor, median and ceiling are text-only inference (combos_evidence.total_combos = 0) No tournament link: archetype meta-share and per-pilot match record absent No win-rate telemetry; going-first, going-second, matchup and brick rates are Inferred or Unknown Meta Power is Provisional: no dated metagame sample supplied usage_statistics in_this_deck flags are false for Extra Deck cards that are present in the card list (Splash Mage 59859086, S-Force Justify 35334193, Final Sigma 42632209, Decode Talker Heatsoul 61245672, Primathmech Laplacian 88021907, Geomathmech Magma 15248594). The core_present_pct of 52.6 therefore undercounts; by card_id, 16 of 19 core cards are present (84.2%). This looks like a preprocessor matching gap for Extra Deck cards and should be checked. No side deck exists in Duel Links; post-side adaptability cannot be measured