Railway Deck #7643 — Yu-Gi-Oh! Master Duel

Deck — Deck Power Evaluation

Final Contextual Deck Power: 30/100 (±8 · Confidence: Medium)

• Primary strategy: Midrange
• Secondary strategies: Blind-Second/OTK, Toolbox
• Format: master-duel

Legality

Main 40 / Extra 15 / Side 0 — status under the rules at evaluation time: Illegal. 4 violation(s).

Identity & game plan

• Win condition: Xyz/Link board of Level 10+ Train monsters (Juggernaut Liebe at 4000 ATK, Gustav Max, Super Dora) closing through a board-breaking Derricrane and Train recursion; Direct-attack and piercing pressure from Railway Link and Xyz monsters once the opponent's board is cleared by Raigeki, Lightning Storm or Harpie's Feather Duster
• Turn 1 (going first): Open Train searchers and Night Express Knight or Super Express Bullet Train to reach a Level 10 Machine, then hold up Ash Blossom and the hand traps, with Maxx C drawing off their Special Summons
• Turn 2 (going second): Use Ash Blossom and Maxx C to disrupt the opponent's opening, then answer their board with Raigeki, Lightning Storm or Derricrane's hand Special Summon and Xyz into a 4000 ATK boss
• Recovery: Revolving Switchyard and Ruffian Railcar fuel the graveyard, and Pot of Desires plus Urgent Schedule rebuild the hand; Monster Reborn returns a Level 10 Machine from either graveyard
• After siding: Not applicable: the deck runs an empty Side Deck (0 cards), so there is no post-side plan

Why it scores here

The score comes from the deck as a system, not from averaging its card scores. The Train core (31 copies of Train-archetype cards) gives a reasonable chance of a Level 10 Machine on turn 1 or 2 (P of at least one core card in a 5-card opening hand is about 0.74, Inferred), and the boss Xyz monsters give strong end-board closing power. Interaction is broad (Raigeki, Lightning Storm, Harpie's Feather Duster, Crossout Designator and Ash Blossom), but the list is pulled down by 14 generic and tech cards and by heavy copy-limit and Forbidden-card violations. The deck is illegal in Master Duel as built, so its contextual score is capped at 30 and labelled theoretical and structural only. Archetype popularity earned no points: only 3 of the 25 archetype-standard core cards are in the list, and no tournament or win-rate data supports the score.

Dimension scores

How the score was computed

Strategy profile: Midrange. Structural ≈ 50.4, Going First ≈ 52, Going Second ≈ 55, Meta = provisional, Tournament Reliability ≈ 42. Modifiers: Banlist exposure (-6); Copy-limit violations (-6). Final formula: Uncapped: 0.80*50.4 + 0.20*42 + modifiers(-12) = 36.7; Illegal cap applied: final = 30 (theoretical / structural-only). Meta provisional.

Probability & combo summary

• Opening a starter: P(≥1) ≈ 0.74 · key two-card combo ≈ — · full-brick estimate ≈ 0.26 (all Inferred)
• Combo output: best PowerIndex —, median —, board-per-starter —
• Turn order: 0 going-first lines vs 0 going-second lines

Strengths

• Level 10 Machine enablers (Night Express Knight, Super Express Bullet Train, Ruffian Railcar) reach the Xyz boss monsters
• Layered removal and negation: Raigeki, Lightning Storm, Harpie's Feather Duster, Crossout Designator, Ash Blossom
• High-ATK closing: Juggernaut Liebe 4000 ATK and Super Dora 3200 ATK

Weaknesses

• Illegal as built: three copy-limit violations and two Forbidden cards
• Only 3 of 25 usage-core cards present, so it deviates heavily from the standard Railway list
• Empty Side Deck, no post-side adaptation
• Non-archetype filler (Maxx C, Pot of Desires, Crossout Designator, Monster Reborn) dilutes engine density

Critical choke points

• Level 10 Machine enabler in hand: the Train engine stalls without one
• Forbidden Terraforming and Called by the Grave: removing them is required before the list is legal

Recommended changes

Evidence & confidence

• Verified: Legality: Illegal, 40 main / 15 extra / 0 side, four copy or ban violations; Card text and stats for all 27 distinct cards; Usage stats: 3 of 25 core cards present; Forbidden status of Called by the Grave and Terraforming
• Inferred: Starter access P(at least one core card in 5) about 0.74; Brick and interaction quality estimates; Going-first and going-second plans from card text
• Provisional: Meta Power (no dated sample); Matchup and format fit (no tournament link)
• 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 rates) Meta Power is provisional unless a dated metagame sample is supplied deck title is null