Mathmech Deck #754202 — Yu-Gi-Oh! Duel Links

Deck — Deck Power Evaluation

Final Contextual Deck Power: 59/100 (±6 · Confidence: Medium)

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

Legality

Main 20 / Extra 9 / Side 0 — status: Legal.

Identity & game plan

• Win condition: Extra Deck boss monsters (Geomathmech Final Sigma x2, Primathmech Laplacian x2) built from a Mathmech board, with Synchro/Link/Xyz follow-ups for pressure; Link and Synchro pressure from Link-3 and Synchro monsters (S-Force Justify, Topologic Trisbaena, Decode Talker Heatsoul, Geomathmech Magma) once the board is established
• Turn 1 (going first): Normal Summon Mathmech Diameter or Sigma (3 copies each) to reach a Level 4 Cyberse body, use Mathmech Addition or Equation to Special Summon from GY, then build a Synchro or Xyz into the Extra Deck bosses
• Turn 2 (going second): Use Artifact Lancea (x2) as a hand trap or Forbidden Droplet to answer the opponent's first board, then rebuild through Mathmech GY recursion into a Final Sigma or Laplacian
• Recovery: Mathmech monsters in the GY can be Special Summoned again through Equation, Addition and Multiplication, and Superfactorial can Synchro Summon from GY materials, so the engine recurs without a searcher
• After siding: No side deck in Duel Links (side_count 0); the post-interaction plan is to re-route through Trisbaena banish and Final Sigma negation, not sideboarding

Why it scores here

The deck reliably opens a Mathmech engine: the 14 archetype-core copies give an estimated P(at least one Mathmech starter in a going-first 5-card hand) of about 0.87 and about 0.92 going second, computed from the main deck (Inferred). Conversion into the Extra Deck is real, because Final Sigma and Laplacian (2 copies each) plus Link-3 pressure give several boss routes, and the GY recursion lets the engine continue after a single removal or negation. Interaction is reasonable: 7 negation-text cards, 6 removal-text cards, two Artifact Lancea hand traps and Superfactorial, though Superfactorial is Limited and runs one copy. The score does not come from Mathmech being a popular archetype: the guide only places it at Tier 3, and usage stats confirm the list is standard rather than strong. No recorded boards exist, so median and ceiling are text-based inference, and card scores were not averaged.

Dimension scores

How the score was computed

Strategy profile: Midrange. Structural ≈ 61, Going First ≈ 63, Going Second ≈ 57, Meta = provisional, Tournament Reliability ≈ 60. Modifiers: banlist_exposure (-2). Final formula: 0.80*Structural + 0.20*TournamentReliability (Meta provisional) + ContextModifiers = 0.80*61 + 0.20*60 - 2 = 58.8, rounded to 59

Probability & combo summary

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

Strengths

• Engine density: 14 archetype-core copies give a high chance of a Mathmech starter in the opening hand
• Extra Deck bosses (Final Sigma, Laplacian) give ceiling and closing power
• Recursion through Mathmech GY cards gives resilience after disruption
• Multiple negation and removal text cards cover the endboard

Weaknesses

• No recorded boards, so the median and ceiling are unverified
• Superfactorial is Limited and runs one copy, a single point of failure for one engine route
• Two non-engine spells (Book of Eclipse, Forbidden Droplet) add brick risk
• No searcher text in the list, so the deck relies on draws and GY recursion

Critical choke points

• The Level 4 Cyberse starter (Diameter or Sigma) being removed or negated before the engine is live
• Final Sigma and Laplacian on the Extra Deck, with 2 copies each being the only boss routes

Recommended changes

Evidence & confidence

• Verified: Legal status and 20/9/0 size; Superfactorial Limited with 1 copy run; Extra Deck composition 2 Final Sigma, 2 Laplacian, 4 Link, 1 Magma
• Inferred: Starter probability about 0.87 going first and about 0.92 going second; Interaction density from negation and removal text; Brick risk from non-engine spells
• Provisional: Median and ceiling (no recorded boards); Format fit and matchup (no tournament data); Side adaptability (Duel Links has no side deck)
• Data gaps: no combos supplied, so combo floor, median and ceiling are text-only inference no tournament link, so archetype meta-share and per-pilot match record are absent no win-rate telemetry for going-first/second, matchup or brick rates Meta Power is provisional unless a dated metagame sample is supplied