Train Deck #64398 — Yu-Gi-Oh! Master Duel

Deck — Deck Power Evaluation

Final Contextual Deck Power: 25/100 (±10 · Confidence: Low)

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

Legality

Main 43 / Extra 16 / Side 0 — status: Illegal. 2 violation(s).

Identity & game plan

• Win condition: Unverified: no combos, guides or tournament data; the Extra Deck Xyz/Fusion/Link lineup (Liebe, Gustav Max, Super Dora, Ballista-style Xyz, Egyptian God Slime) suggests board-pressure finishes, but this is an inference only.; Direct damage and high-ATK beatsticks (Bigfoot, Thunderbird, Night Express Knight at 3000 ATK) once a board is established.
• Turn 1 (going first): Open a Train or Timelord starter, use Derricrane / Night Express Knight for board presence, and reach an Extra Deck Xyz; the plan is unverified and the opening hand odds are below.
• Turn 2 (going second): Use the six-card hand to play hand-trap or floodgate interaction (Nibiru, Gate Infinity, Divine Serpent Geh) and then a Xyz or Link summon. Interaction count is low, so this is fragile.
• Recovery: Recursion is limited to Xyz material detach and searchers (6 searcher-text cards); no explicit recovery engine is evidenced.
• After siding: Not available: the deck runs zero Side Deck cards, so no post-side adaptation is possible.

Why it scores here

The deck is Illegal in master-duel because its Extra Deck holds 16 cards against a maximum of 15, so it receives no normal Final Contextual score and is capped low as a theoretical, structural-only read. Its opening access is moderate: a 3-copy Train or Timelord starter has about a 32% chance to appear in a 5-card opening hand, and searcher text reaches about 55% across six searchers. Conversion is unverified because no combo boards, guides or tournament records exist, so the ceiling and median are inferred from card text only. The list is archetype-diffuse: only 12 of 59 cards carry the exact Train name (about 20%), and the archetype-usage core is absent, which argues against a coherent single engine. The score is not an average of card scores, and popularity or meta-share did not contribute because no such data was supplied.

Dimension scores

How the score was computed

Strategy profile: 0.7 Toolbox + 0.3 Midrange (disclosed; no tournament or combo signal to choose a primary profile more firmly). Structural ≈ 41, Going First ≈ 40, Going Second ≈ 38, Meta = provisional, Tournament Reliability ≈ 35. Modifiers: illegal_extra_deck_size (-12); archetype_diffusion (-3); no_side_deck (-2). Final formula: Illegal: capped low as theoretical/structural-only. Structural ≈ 41; final capped at 25 per rubric Step 2 (not a normal 0.80·Structural + 0.20·TR).

Probability & combo summary

• Opening a starter: P(≥1) ≈ 0.32 · 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

• Three-copy engine staples (Derricrane, Night Express Knight, Guardian Slime, Bigfoot) give consistent high-ATK board presence
• Six searcher-text cards give about 55% access to a searcher in the opening 5
• Mixed Xyz/Fusion/Link Extra Deck provides several finishing routes

Weaknesses

• Illegal: Extra Deck exceeds the 15-card maximum by one
• Low archetype purity (20%) with 47 off-archetype copies
• No Side Deck, so no post-side plan
• Usage-statistics core list is entirely Ancient Gear cards, which does not match a Train deck; the archetype stat set is unreliable for this deck

Critical choke points

• Extra Deck legality: removing one Extra card is required before any normal score can apply
• Timelord starters need an empty board to Normal Summon, which is a timing constraint on going first

Recommended changes

Evidence & confidence

• Verified: Extra Deck is 16 cards, above the master-duel maximum of 15 (legality); Main Deck is 43 cards, inside the 40–60 range; Exact-name purity is 20.3%; 12 of 59 cards carry the Train name; Side Deck is empty (0 cards); Card texts and copy counts as listed in the evidence pack
• Inferred: Starter access probabilities (hypergeometric); Interaction density and resilience read from card text; Going-first and going-second power estimates; Pilotability estimate from decision-point count
• Provisional: Meta Power (null, no dated metagame sample); Matchup and format fit (no tournament link); Tournament reliability
• Data gaps: No combos supplied; combo floor/median/ceiling is text-only inference No tournament link; archetype meta-share and per-pilot match record absent No win-rate telemetry; going-first/second, matchup and brick rates are Inferred or Unknown Usage statistics list only Ancient Gear cards as core for this Train deck, which appears to be a mismatched archetype stat set No side deck, no guides, deck title null Meta Power remains provisional without a dated metagame sample