Mathmech Deck #769746 — Yu-Gi-Oh! OCG

Deck — Deck Power Evaluation

Final Contextual Deck Power: 40/100 (±10 · Confidence: Low)

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

Legality

Main 40 / Extra 15 / Side 0 — status under the rules at evaluation time: Illegal. 1 violation(s).

Identity & game plan

• Win condition: Mathmech Synchro/Xyz/Link boards built from Mathmech Diameter, Sigma and Addition chains, closed with Primathmech and Link-5 bosses; Link monsters (Firewall Dragon Darkfluid, Accesscode Talker, Allied Code Talker) that stack attack and disrupt the opponent's Link zones
• Turn 1 (going first): Open Mathmech starters with Cynet Mining or Small World, then extend with Mathmech Diameter and Addition into a Synchro or Link, holding Ash Blossom and Infinite Impermanence for the opponent's first interaction
• Turn 2 (going second): Use the nine hand traps (Ash Blossom, Effect Veiler, Infinite Impermanence) to break the opponent's first Main Phase, then rebuild through Mathmech Equation or Superfactorial
• Recovery: Mathmech Nabla and Mathmech Circular recycle Mathmech monsters from the Deck and GY; Primathmech Alembertian can search Mathmech cards
• After siding: Not evaluable: the deck has zero Side Deck cards, so no post-side plan exists

Why it scores here

The deck reliably opens its Mathmech starters through a broad set of 1-of and 3-of tech cards, with P(at least one of the 3-copy starter Mathmech Diameter in a 5-card opening) ≈ 0.34 and a 14-card Mathmech core present at roughly 0.90 for at least one card in hand (Inferred). Its interaction density is strong: nine hand traps and about fourteen negation-text cards give high disruption for going second (P ≥ 1 hand trap in a 6-card hand ≈ 0.81, Inferred). The score is held down by the illegal copy count of Ash Blossom & Joyous Spring (3 run, 2 legal), zero Side Deck cards, and the lack of any recorded boards, so conversion and floor scores are text-only inference. Only 27% of the Main Deck is exact-name Mathmech, so engine coherence depends on Firewall, Code Talker, Mulcharmy and generic staples. Archetype popularity was not credited, and card scores were not averaged into the deck result.

Dimension scores

How the score was computed

Strategy profile: Midrange. Structural ≈ 53, Going First ≈ 50, Going Second ≈ 60, Meta = provisional, Tournament Reliability ≈ 40. Modifiers: illegal copy limit (-10); zero side deck (0). Final formula: Theoretical only (Illegal cap applied): 0.80*Structural(53) + 0.20*TournamentReliability(40) = 50.4, minus 10 illegal-copy modifier = 40; Meta Power null (Provisional)

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

• Nine hand traps plus negation text give strong disruption, especially going second
• Layered Mathmech and Link bosses with high ATK closing power
• Full Extra Deck with varied Link and Xyz access

Weaknesses

• Illegal copy count of Ash Blossom & Joyous Spring
• No Side Deck cards for best-of-3
• Only 27% exact-name Mathmech purity; engine conflicts across Firewall, Code Talker and Mulcharmy
• No recorded boards, so conversion cannot be verified

Critical choke points

• Opening with a Mathmech starter: a 3-copy starter is in the opening 5 only about a third of the time
• The legal 2-copy limit on Ash Blossom removes one interaction slot from the intended build

Recommended changes

Evidence & confidence

• Verified: Deck is 40 Main, 15 Extra, 0 Side under OCG size rules; Ash Blossom & Joyous Spring is run 3 copies against a Semi-Limited limit of 2; Mathmech Circular is run 1 copy, matching its Limited status; Composition: 19 distinct Main cards, 27.3% exact-name Mathmech purity
• Inferred: P(≥1 3-copy starter in 5-card hand) ≈ 0.34 and archetype-core ≈ 0.90 are hypergeometric estimates; Hand trap access on going second ≈ 0.81; Midrange profile, and consistency and interaction ratings, are text-based reads
• Provisional: Meta Power and D13 matchup fit, pending a dated meta sample; Tournament reliability
• Data gaps: No combos supplied: combo floor, median and ceiling are text-only inference No tournament link: archetype meta-share and pilot match record are absent No win-rate telemetry for going-first, going-second, matchup or brick rates Meta Power is Provisional without a dated metagame sample No Side Deck cards, so post-side performance cannot be assessed