Mathmech Deck #791282 — Yu-Gi-Oh! OCG

Deck — Deck Power Evaluation

Final Contextual Deck Power: 35/100 (±10 · Confidence: Low)

• Primary strategy: Combo
• Secondary strategies: Midrange, Toolbox
• Format: ocg

Legality

Main 40 / Extra 15 / Side 15 — status under the rules at evaluation time: Illegal. 1 violation(s).

Identity & game plan

• Win condition: Link Summon into the 2800-ATK Salamangreat Phoenix link monsters (Pyro Phoenix, Raging Phoenix), with Geomathmech Final Sigma (3000 ATK) as a secondary closer.; Mathmech Sigma and Mathmech Addition turn the board into Synchro and Link pressure, and Promethean Princess (2700 ATK) provides a second big body.
• Turn 1 (going first): Open with a Salamangreat starter (Circle, Gazelle or Fuwalos), search a Link enabler (Sanctuary via Balelynx, or a Salamangreat card via Sunlight Wolf or Raging Phoenix), then Link Summon into a 2800-ATK Phoenix. Hold Ash Blossom and Infinite Impermanence for the opponent's response.
• Turn 2 (going second): Use the six-card hand's hand traps (Ash Blossom, Ghost Ogre, Infinite Impermanence, Droll & Lock Bird from the Side Deck) to slow the opponent's first combo, then rebuild the Link board from the Graveyard.
• Recovery: Recover from the Graveyard through Balelynx banish effects, Jack Jaguar, Weasel and Spinny, and rebuild with Circular or Mathmech Subtraction.
• After siding: Side Droll & Lock Bird, Raigeki or Forbidden Droplet into a deck that relies on Link Monsters, and keep Ghost Belle as a second hand trap. The Side Deck is broad, but this has no recorded matchup data.

Why it scores here

The deck is scored as a system, not as an average of its cards. Its starters are three-copy staples that open at about a one-in-three rate in a five-card hand (Inferred), and the archetype core is present in about 92 percent of opening hands, so the engine comes online often. The Link finishers (2800 ATK Phoenixes, a 3000 ATK Synchro) and the spread of hand traps and Main Deck interaction are the strongest parts of the list. Popularity and the usage stats for the archetype confirm the list is real but earned no points, and the scores come from consistency and interaction on the list itself. The list runs Ash Blossom three times where the format allows two, so the Final score is capped low and this is a structural-only read.

Dimension scores

How the score was computed

Strategy profile: Combo. Structural ≈ 56, Going First ≈ 55, Going Second ≈ 52, Meta = provisional, Tournament Reliability ≈ 50. Modifiers: Illegal copy-limit violation (-12); Banlist exposure (0). Final formula: No reliable metagame: 0.80*Structural + 0.20*TournamentReliability = 54.8, then -12 copy-limit modifier = 42.8, then capped at 35 because the deck is Illegal (over the copy limit).

Probability & combo summary

• Opening a starter: P(≥1) ≈ 0.34 · 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

• High-ATK Link finishers (2800 and 3000 ATK) close games quickly
• Six hand traps and Main Deck interaction give broad disruption
• Strong Side Deck coverage for post-side plans
• Archetype core is usually present in opening hands

Weaknesses

• Three copies of Ash Blossom & Joyous Spring exceed the legal limit of two
• No recorded boards, so the combo floor and median are unknown
• Several singletons and zero-level spells raise brick risk
• Mathmech and Salamangreat engines are only partly connected

Critical choke points

• Link Summon routes depend on a small number of Link enablers (Balelynx, Sunlight Wolf)
• The copy-limit violation makes the list illegal until one Ash Blossom is removed

Recommended changes

Evidence & confidence

• Verified: Ash Blossom & Joyous Spring runs three copies against a Semi-Limited limit of two; Card text for the Phoenix Link Monsters, Final Sigma and Promethean Princess; Main, Extra and Side counts are 40, 15 and 15, all within OCG size limits
• Inferred: Opening-hand probabilities for three-copy starters and the archetype core; Hand-trap and interaction density read from card text; Brick risk estimate from copy histogram and zero-level spells
• Provisional: Meta power and matchup fit, since no dated metagame sample is supplied
• Data gaps: No recorded boards exist for this deck, so combo floor, median and ceiling are text-only inference No tournament link, so archetype meta-share and any pilot match record are absent No win-rate, going-first or going-second telemetry exists for this deck Meta power is provisional without a dated metagame sample