Train Deck #751575 — Yu-Gi-Oh! Master Duel

Deck — Deck Power Evaluation

Final Contextual Deck Power: 33/100 (±6 · Confidence: Medium)

• Primary strategy: Toolbox
• Secondary strategies: Midrange
• Format: master-duel

Legality

Main 40 / Extra 15 / Side 0 — status: Legal.

Identity & game plan

• Win condition: Synchro/Xyz boss monsters (Superdreadnought Rail Cannon 3800 ATK, Ascension Sky Dragon, Performage Trapeze 2700) reached through Tuner-based Synchro Summons and Exceptional Schedule's Diagram Token; Draw-engine card advantage (Pot of Avarice, Advance Draw, Magical Mallet, Spell Reproduction) feeding late-game boss summons
• Turn 1 (going first): Draw and search with Magical Mallet, Advance Draw, Pot of Avarice or Spell Reproduction; look for Morphtronic Telefon to enable a Synchro Summon, or Exceptional Schedule for a Diagram Token toward Rail Cannon
• Turn 2 (going second): Use Dark Hole or the Extra Deck removal effects (Ancient Pixie Dragon, Ancient Gear Ballista, S:P Little Knight) to clear the opponent's board, then rebuild with draw spells and a boss monster
• Recovery: Spell Reproduction and Magical Stone Excavation recover spells from the Graveyard; Duelist Genesis and Synchro Creed add value once a Tuner or Synchro is on the field
• After siding: No Side Deck is registered (side_count 0), so there is no post-side plan; the deck cannot adapt between games

Why it scores here

The deck is scored as a system: its engines are split across Train, Synchro, Xyz, Link, Ancient Gear, Superheavy, Performage and Archfiend cards, with only 6 of 40 Main Deck cards carrying the Train name (10.9% exact-name purity). Nine Synchro Monsters depend on just three Tuners, all Morphtronic Telefon, so the opening hand reaches a live Synchro engine only about 34% of the time going first, and that estimate is Inferred from hypergeometric odds. Draw density (Magical Mallet, Pot of Avarice, Advance Draw, Spell Reproduction, Synchro Creed) and high-ceiling boss monsters earn the offensive and card-advantage scores. Dead or conditional cards such as Archfiend Emperor (its Ritual Summon needs Throne of the Archfiends, which is absent), Ancient Gear Box, Kai-Den and Localized Tornado pull the floor down. The deck has no Side Deck and no combo or tournament evidence, so the score rests on text and probability reads rather than measured output or meta share. Popularity of the Train name and the average of card strengths did not contribute to the score.

Dimension scores

How the score was computed

Strategy profile: Toolbox primary, Midrange secondary (disclosed as a blend; Toolbox weights used for Structural). Structural ≈ 42.35, Going First ≈ 42, Going Second ≈ 40, Meta = provisional, Tournament Reliability ≈ 36. Modifiers: Engine conflict (-4); Single Tuner choke point (-2); No side deck (-2). Final formula: 0.80*Structural + 0.20*TournamentReliability + ContextModifiers (Meta provisional) = 0.80*42.35 + 0.20*36 - 8 = 32.8, rounded to 33

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

• Heavy draw density: Magical Mallet, Pot of Avarice, Advance Draw, Synchro Creed and Spell Reproduction
• High-ceiling boss monsters: Superdreadnought Rail Cannon 3800 ATK, Ascension Sky Dragon, Performage Trapeze 2700 ATK
• Dark Hole gives the deck a going-second board reset
• Legal in Master Duel with a complete list (40 Main, 15 Extra, Limited card within its cap)

Weaknesses

• Engine split across at least six archetypes and generic cards, with 10.9% exact Train purity
• Only three Tuners for nine Synchro Monsters
• Exceptional Schedule's search target only resolves to Urgent Schedule because Special Schedule is absent
• Archfiend Emperor cannot be Ritual Summoned without Throne of the Archfiends
• No Side Deck, no hand traps, no floodgates
• Ancient Gear cards, Kai-Den and Localized Tornado do not connect to the main plan

Critical choke points

• Morphtronic Telefon (3 copies, only Tuner): the Synchro engine stops without it
• Exceptional Schedule (3 copies, only Train searcher and Diagram Token source): Rail Cannon line depends on it
• Heavy Armored Knight Babeldecker (1 copy): required Level-10 partner for Rail Cannon Xyz Summon
• Special Schedule absent: Exceptional Schedule can only find Urgent Schedule (1 copy)

Recommended changes

Evidence & confidence

• Verified: Legal in Master Duel: 40 Main, 15 Extra, 0 Side; no violations; Superheavy Samurai Soulpiercer is Limited at 1 legal copy and 1 run (legal); Exceptional Schedule search text, Archfiend Emperor Throne requirement, Telefon as the only Tuner (card text); Usage stats: 2 of 25 Ancient Gear core cards present (8%)
• Inferred: Telefon or Exceptional Schedule opening-hand access ≈ 0.34 going first (hypergeometric); Engine conflict and brick risk from the generic card mix; Draw density and boss ceiling read from card text
• Provisional: Meta Power is null; D13 format fit is provisional (no tournament link or dated meta)
• 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/starter/OTK rates) Meta Power is provisional unless a dated metagame sample is supplied No Side Deck list: post-side adaptability cannot be measured