Mathmech Deck #791919 — Yu-Gi-Oh! OCG
40 Main, 15 Extra, incl. Mulcharmy Fuwalos x3, Salamangreat Gazelle x3, Salamangreat Circle x3.
Created by: YGO Mod (20517634)
Created On: 11/11/2026
Main Deck (40)
- Mathmech Addition x1
- Mathmech Circular x1
- Mathmech Subtraction x1
- Mulcharmy Fuwalos x3
- Salamangreat Falco x1
- Salamangreat Foxy x1
- Salamangreat Gazelle x3
- Salamangreat Jack Jaguar x1
- Salamangreat of Fire x2
- Salamangreat Spinny x1
- Ash Blossom & Joyous Spring x2
- Ghost Ogre & Snow Rabbit x2
- Mathmech Sigma x1
- Salamangreat Weasel x1
- Cynet Mining x2
- Dark Ruler No More x1
- Foolish Burial x1
- Harpie's Feather Duster x1
- Salamangreat Circle x3
- Salamangreat Sanctuary x2
- Triple Tactics Thrust x2
- Upstart Goblin x2
- Will of the Salamangreat x1
- Infinite Impermanence x1
- Mathmech Superfactorial x1
- Salamangreat Rage x1
- Salamangreat Roar x1
Extra Deck (15)
- Hiita the Fire Charmer, Ablaze x1
- Knightmare Phoenix x1
- Promethean Princess, Bestower of Flames x1
- S:P Little Knight x1
- Salamangreat Balelynx x2
- Salamangreat Pyro Phoenix x2
- Salamangreat Raging Phoenix x2
- Salamangreat Sunlight Wolf x2
- Geomathmech Final Sigma x1
- DPH Gendamoore x1
- Salamangreat Miragestallio x1
Side Deck (15)
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Deck — Deck Power Evaluation
Final Contextual Deck Power: 60/100 (±6 · Confidence: Medium)
| Overall score | Value |
|---|---|
| Structural Deck Power | 63 |
| Going First | 62 |
| Going Second | 64 |
| Meta Power | provisional |
| Tournament Reliability | 60 |
- Primary strategy: Midrange
- Secondary strategies: Combo, Stun, Link Summon
- Format: ocg
Legality
Main 40 / Extra 15 / Side 15 — status: Legal.
Identity & game plan
- Win condition: Link Summon Salamangreat Pyro Phoenix or Raging Phoenix (2800 ATK each, two copies each) and convert the board with Geomathmech Final Sigma (3000 ATK); Salamangreat Miragestallio and Promethean Princess as additional Extra Deck closers once the Link Monsters are on board
- Turn 1 (going first): Open with Salamangreat Gazelle, Mulcharmy Fuwalos or Salamangreat Circle; the searchers (Circle, Cynet Mining, Salamangreat of Fire, Foxy) fetch the next Salamangreat piece and build toward a Link Summon of Balelynx or Sunlight Wolf
- Turn 2 (going second): Hold Ash Blossom and Ghost Ogre as hand traps against the opponent's first engine play, then use the same searcher and Link line on the following turn
- Recovery: Graveyard-triggered Special Summons (Gazelle, Falco, Spinny, Weasel) and the Link Monsters' GY effects rebuild board presence after a clean removal or negation
- After siding: Bring in Raigeki, Forbidden Droplet, Ghost Belle and Fantastical Dragon Phantazmay against boards that rely on Link Monsters or Spell/Trap pressure; Blaze Dragon and Iron Thunder cover the remaining gaps
Why it scores here
The deck reliably opens into a Salamangreat engine: three copies each of Gazelle, Fuwalos and Circle, plus two Circle-style searchers and a Foxy, give a high chance that at least one starter or searcher is in hand, and the probability estimates put the core group at roughly 90 percent to open with one piece. Its conversion is strong on paper because the Extra Deck is built around 2800-ATK Link Phoenixes and a 3000-ATK Synchro finisher, but no recorded boards exist, so the ceiling is text-based and the median is not measured. Interaction is the system's best feature: two Ash Blossom, two Ghost Ogre, Infinite Impermanence, Salamangreat Rage and Roar, plus Harpie's Feather Duster and Dark Ruler No More, give layered protection against the common first plays. The score comes from consistency, interaction density and closing power acting together, not from Mathmech being a popular archetype and not from averaging the individual card scores; the Mathmech archetype label covers only six exact-name copies, and the engine is mostly Salamangreat.
Dimension scores
| # | Dimension | Score | Evidence |
|---|---|---|---|
| D1 | Engine Accessibility & Consistency | 70 | P(at least one core-group card in a 5-card opening hand) is about 0.90 and searcher access is about 0.82; the 2-card starter bootstrap is plausible but not measured (Inferred) |
| D2 | Opening-Hand Quality & Brick Management | 58 | Five hand traps and eight tech cards add dead-card risk when no Link Monster is available to support Sanctuary and Balelynx; the copy histogram is modest (Inferred) |
| D3 | Combo Conversion & Ceiling | 62 | Text-only ceiling: two 2800-ATK Pyro and Raging Phoenixes, a 3000-ATK Final Sigma and removal from Phoenix effects; no recorded boards to confirm it (Inferred) |
| D4 | Combo Floor & Median Output | 48 | No recorded boards are available, so the median output cannot be measured and is held near neutral (Provisional) |
| D5 | Interruption Resilience & Route Redundancy | 66 | Multiple independent engines (Gazelle, Fuwalos, Circle, Balelynx, Sunlight Wolf) and graveyard revival effects keep the deck able to continue after one disruption (Inferred) |
| D6 | Resource Economy, Recovery & Grind | 62 | Eleven searcher cards and Upstart Goblin support card flow; Sanctuary costs 1000 LP and Cynet Mining costs a card from hand, which limits grind (Inferred) |
| D7 | End-Board & Interaction Quality | 72 | Two Ash Blossom, two Ghost Ogre, Impermanence, Rage, Roar, Duster and Dark Ruler No More give six negations and ten removal effects (Inferred semantic read from card text) |
| D8 | Going-Second & Board-Breaking Power | 66 | Going-second hand-trap probability is about 0.58 for the hand-trap group, plus side cards Droll and Lock Bird, Raigeki and Phantazmay for board-breaking (Inferred) |
| D9 | Offensive Pressure & Closing Power | 74 | Two 2800-ATK Pyro Phoenix, two 2800-ATK Raging Phoenix, a 3000-ATK Final Sigma and Promethean Princess give high closing power (Verified card stats) |
| D10 | Main Deck Efficiency & Flexibility | 60 | Forty main slots across 27 distinct cards with a Salamangreat-heavy core; exact-name Mathmech purity is only about 11 percent, so some slots are generic or off-archetype (Inferred) |
| D11 | Extra Deck Efficiency & Coverage | 68 | Fifteen Extra Deck slots are used efficiently: twelve Link Monsters, two Synchro and one Xyz, with enough Link coverage for the main engine (Verified composition) |
| D12 | Side Deck Adaptability | 70 | Fifteen side cards include Raigeki, Forbidden Droplet, Ghost Belle, Phantazmay, Iron Thunder and Droll and Lock Bird, giving real post-side options (Inferred, no post-side data) |
| D13 | Matchup Coverage & Format Fit | 55 | No tournament or dated metagame data is supplied, so fit to the current OCG environment is Provisional |
| D14 | Pilotability & Error Tolerance | 50 | Many conditional summon and Link steps across three Extra Deck families make the deck demanding to pilot, though no combo steps were recorded (Inferred) |
How the score was computed
Strategy profile: Midrange. Structural ≈ 63, Going First ≈ 62, Going Second ≈ 64, Meta = provisional, Tournament Reliability ≈ 60. Modifiers: banlist exposure (-2); engine conflict (-2); transformational side deck (1). Final formula: 0.80*Structural + 0.20*TournamentReliability + ContextModifiers (Meta provisional); 0.80*63.4 + 0.20*60 - 3 = 59.7
Probability & combo summary
- Opening a starter: P(≥1) ≈ 0.9 · 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
- Dense Salamangreat searcher and starter package (Gazelle, Fuwalos, Circle, Foxy, Cynet Mining)
- Layered interaction: two Ash Blossom, two Ghost Ogre, Impermanence, Rage, Roar, Duster and Dark Ruler No More
- Strong Extra Deck closers (two 2800-ATK Pyro Phoenix, two 2800-ATK Raging Phoenix, 3000-ATK Final Sigma)
- Side deck offers real post-side changes including Raigeki, Droplet and Phantazmay
Weaknesses
- No recorded boards, so the median and ceiling are not measured
- Mathmech identity is thin: only six exact-name copies in a mostly Salamangreat build
- Five hand traps and eight tech cards add dead-card risk in some hands
- Sanctuary's 1000 LP cost and Cynet Mining's hand discard limit grind
Critical choke points
- Salamangreat Circle and Gazelle as the early searcher and starter; losing them removes most early access
- Link Summon of Pyro or Raging Phoenix needs the right Link Monster material on board
Recommended changes
| Priority | Remove | Add | Reason |
|---|---|---|---|
| 1 | Dark Ruler No More | a second copy of Salamangreat Foxy | Dark Ruler No More is a narrow single copy that only negates monster effects, while a second Foxy adds a Normal Summon search for the engine's starter access |
Evidence & confidence
- Verified: Main 40, Extra 15, Side 15 and no size violations; Six restricted cards run within their legal copy limits; Card stats and text for the listed cards; Extra Deck breakdown: twelve Link, two Synchro, one Xyz
- Inferred: Starter access and brick risk from the hypergeometric draw table; Interaction density and negation coverage from card text; Going-second hand-trap value from the hand-trap probability
- Provisional: Meta and matchup fit, since no dated metagame sample is supplied
- Data gaps: no combos supplied; combo floor, median and ceiling are text-only inference no tournament link; archetype meta-share and per-pilot match record absent no win-rate telemetry (going-first/second, matchup, brick and starter rates) Meta Power is Provisional unless a dated metagame sample is supplied no guides attached to this archetype
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