Fiendsmith Deck #745186 — Yu-Gi-Oh! Master Duel

Deck — Deck Power Evaluation

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

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

Legality

Main 40 / Extra 15 / Side 0 — status: Illegal. 2 violation(s).

Identity & game plan

• Win condition: Fiendsmith Lacrima / Fiendsmith's Desirae / Varudras boards built from Fiendsmith Engraver and Fiendsmith's Tract, with Yubel and Phantom of Yubel as the late-game beaters; Unchained Soul Lord of Yama and Muckraker recursion chains off the Fiend/Yubel body count
• Turn 1 (going first): T1 disruption with Ash Blossom, Ghost Mourner, Effect Veiler and Maxx C, then Fiendsmith Engraver or Fiendsmith's Tract to find the LIGHT Fiend engine and set up a Link or Fusion route
• Turn 2 (going second): Hand traps (Ash Blossom, Infinite Impermanence, Droll & Lock Bird, Skull Meister) to stop the opponent's first board, then rebuild through Engraver and Tract
• Recovery: Fiendsmith's Tract and Engraver recover from the GY, and Lacrima and Requiem re-equip from the GY
• After siding: Not applicable: the export has no side deck and Master Duel does not use a side deck, so the post-side plan is unavailable

Why it scores here

The score comes from the system: a Fiendsmith control shell with 12 hand traps and negation text, 17 searcher-text cards, and a 15-card Extra Deck that covers Fusion, Link and XYZ routes. Its opening access is decent, since the 3-copy Ash Blossom and the 2-copy Engraver and Tract give roughly a 24% chance per copy in a 5-card opening hand, and the archetype core has about a 78% chance of at least one piece in hand (Inferred). The deck's floor and median output cannot be measured because the export has no parseable boards, so those scores rest on card text alone. The score is capped low because the list is illegal: Called by the Grave is Forbidden and Phantom of Yubel runs 3 copies against a limit of 2. The average of the individual card scores was not used, and popularity was not counted toward the score.

Dimension scores

How the score was computed

Strategy profile: Control. Structural ≈ 54, Going First ≈ 50, Going Second ≈ 45, Meta = provisional, Tournament Reliability ≈ 45. Modifiers: banlist_exposure (-12); illegal_list_cap (-10). Final formula: 0.80*Structural(54) + 0.20*TournamentReliability(45) = 52.2 before modifiers; -12 banlist exposure = 40.2; capped to 30 for an Illegal list (Meta provisional)

Probability & combo summary

• Opening a starter: P(≥1) ≈ 0.24 · 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 interaction: 12 hand traps and 15 removal-text cards
• Searcher density (17 searcher-text cards) keeps the hand functional
• Flexible 15-card Extra Deck covering Fusion, Link and XYZ
• Strong Fiendsmith core: 3-copy Ash Blossom, 2-copy Engraver and Tract

Weaknesses

• Illegal list: Called by the Grave (Forbidden) and 3 copies of Phantom of Yubel (limit 2)
• Low exact-name archetype purity (18%): much of the Main Deck is off-archetype
• No side deck and no recorded combo data to validate the ceiling or median
• Fiend and Yubel requirements raise the brick rate

Critical choke points

• Engraver and Tract are the only route into the Fiendsmith engine; losing them to a single interruption ends the line
• Phantom of Yubel is Fusion-summoned from the Extra Deck, and its copy count is illegal

Recommended changes

Evidence & confidence

• Verified: Main 40 and Extra 15 meet the Master Duel size rules; Called by the Grave is Forbidden and run 1 copy; Phantom of Yubel runs 3 copies against a Semi-Limited limit of 2; Extra Deck breakdown: 6 Fusion, 7 Link, 2 XYZ; Archetype purity 18.2% exact-name; 10 Fiendsmith copies
• Observed: One guide describes the deck as a Fiendsmith control list with a slow, disruption-first game plan
• Inferred: Opening access probabilities for the 2-copy and 3-copy starters; Hand-trap and searcher density reading on the consistency, interaction and recovery dimensions; Going-first and going-second estimates
• Provisional: Meta Power (no dated meta sample); Matchup and format fit (D13)
• 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 exists in YGOVN — going-first/second, matchup, brick and starter rates are Inferred or Unknown Meta Power is Provisional unless a dated metagame sample is supplied no side deck in the export (Master Duel has no side-deck mechanics) deck title is null in the source