Railway Deck #773419 — Yu-Gi-Oh! Master Duel

Deck — Deck Power Evaluation

Final Contextual Deck Power: 55/100 (±7 · Confidence: Medium)

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

Legality

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

Identity & game plan

• Win condition: Level 10 Xyz pressure: Superdreadnought Rail Cannon Gustav Rocket (5000 ATK) and Juggernaut Liebe (4000 ATK), with Gustav Max adding direct damage, after Night Train Blue Traveler and other Level 10 Machines build the board; Machina Ruinforce (4600 ATK) recovered from the GY by banishing Machines, plus Gustav Max direct damage as a finisher
• Turn 1 (going first): Open on Exceptional Schedule or Urgent Schedule for a Train board, use Mulcharmy draw effects when the field is empty, and keep Droll and Forbidden Droplet up as interaction (Inferred; no combo data)
• Turn 2 (going second): Answer the opponent's board with Heavy Storm, Harpie's Feather Duster, Lightning Storm, Forbidden Crown and Droplet, then convert with a Level 10 Xyz; the guides say the deck is stronger going second
• Recovery: Night Train Blue Traveler and Heavy Freight Train Derricrane recur Level 10 Machines from the GY; Pot of Sloth and Mulcharmy draw rebuild the hand (Inferred)
• After siding: No sideboard in Master Duel (side count 0); there is no post-side plan to evaluate

Why it scores here

The deck reliably gets a searcher into hand (P of at least one searcher in 5 cards is about 0.69) and has a broad interaction suite of Heavy Storm, Harpie's Feather Duster, Lightning Storm, Forbidden Crown, Droplet, Droll and Maxx C. Its closing power is high: the Extra Deck holds several 3000 to 5000 ATK Level 10 Xyz monsters plus direct damage from Gustav Max. Consistency is held back by specific starters that appear in only about 0.24 to 0.34 of opening hands, and by Mulcharmy draw effects that need an empty field, which conflicts with the Train board. Combo data is absent, so the ceiling and median are text-based inferences and not observed results. The score comes from consistency, closing power and interaction on the whole system, not from the Railway archetype's popularity and not from averaging the individual card scores.

Dimension scores

How the score was computed

Strategy profile: Midrange. Structural ≈ 58, Going First ≈ 54, Going Second ≈ 66, Meta = provisional, Tournament Reliability ≈ 55. Modifiers: Engine conflict (-2); Extra Deck dependence (-1). Final formula: 0.80*Structural + 0.20*TournamentReliability + ContextModifiers (Meta provisional; 0.80*58.2 + 0.20*55 - 3 = 54.6, rounded to 55)

Probability & combo summary

• Opening a starter: P(≥1) ≈ 0.69 · 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

• Layered backrow and monster interaction (Heavy Storm, Feather Duster, Lightning Storm, Forbidden Crown, Droplet, Droll)
• High closing power: Gustav Rocket 5000 ATK, Liebe 4000 ATK, Ruinforce 4600 ATK and Gustav Max direct damage
• Searcher density (8 copies of searcher text) gives reasonable access to the engine
• Compact Extra Deck with 15 slots covering Xyz, Link and Fusion routes

Weaknesses

• Specific starters (Night Train, Schedules) are present in only about a quarter to a third of opening hands
• Mulcharmy draw cards are dead on a non-empty field and conflict with Train board-building
• Many off-archetype staples dilute the engine (55 of 40 copies are off-archetype)
• No sideboard and no combo or tournament data, so floor and matchup strength are unverified

Critical choke points

• Level 10 Machine count: the Xyz routes need two Level 10 monsters, so a single removal or negation on the first summon can stall the line
• Searcher and Schedule access on going first

Recommended changes

Evidence & confidence

• Verified: Legal Master Duel list: 40 Main, 15 Extra, 0 Side, all restricted cards within copy limits; Copy histogram 9 singles, 8 doubles, 5 triples, matching the card list; Extra Deck breakdown 7 Xyz, 5 Link, 3 Fusion; Card stats and text excerpts for all listed cards
• Observed: Guide snippets describe the deck as going-second oriented with strong OTK potential
• Inferred: Starter access probabilities from hypergeometric estimates; Interaction density and engine conflict from card text; Going-first and going-second power splits; Consistency and brick estimates
• Provisional: Meta Power (null; no dated metagame sample); Matchup fit (no tournament link); Side adaptability (no sideboard in Master Duel)
• 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 usage statistics in this deck flags appear to ignore the Extra Deck zone and to miss main-deck cores (e.g. S:P Little Knight, Underclock Taker, Divine Arsenal AA-ZEUS, Droll-type cards are flagged in this deck false while the cards list shows Extra Deck Xyz/Link cards present), so core-card presence 44 is unreliable deck title is null; deck name cannot be verified no win-rate telemetry exists in YGOVN; Meta Power is Provisional