Fiendsmith Deck #773796 — Yu-Gi-Oh! Master Duel

Deck — Deck Power Evaluation

Final Contextual Deck Power: 58/100 (±6 · Confidence: Medium)

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

Legality

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

Identity & game plan

• Win condition: Extra-Deck boss monsters (Evil★Twin's Trouble Sunny 3300 ATK, Fiendsmith's Rextremende 3000 ATK, Fiendsmith's Desirae 2800 ATK) reached after hand-trap and removal exchanges; Live☆Twin / Evil★Twin link chains that build board presence and removal from Ki-sikil and Lil-la starters
• Turn 1 (going first): Turn 1 Live☆Twin or Spright starter (Ki-sikil, Lil-la, Spright Blue) searched by Secret Password, Sunny's Snitch or Spright Jet, then build a link board for Evil★Twin summons
• Turn 2 (going second): Open on hand traps (Ash Blossom, Droll & Lock Bird, Maxx "C", Purulia, Fuwalos) to strip the opponent's first play, then stabilise and convert through Extra-Deck summons
• Recovery: Mulcharmy draw effects and Fiendsmith's Tract / Fiendsmith Engraver searches and GY recursion rebuild the hand after interaction
• After siding: Not applicable: Side Deck size is 0 and Master Duel has no side deck in this format

Why it scores here

The deck reliably opens a functional starter: the 14 searcher-text cards give about a 0.90 chance of at least one searcher in a 5-card opening hand (Inferred), and the archetype core group gives about 0.92. Its strength is interaction on the system: 6 hand traps, 5 negation texts and 7 removal texts let it answer a first play on both turns and keep the board. Conversion comes from the Extra Deck (3300, 3000 and 2800 ATK link and fusion finishers), and the Mulcharmy draw effects and Fiendsmith search/recursion rebuild the hand after exchanges. The score is held down by the multi-engine spread (exact Fiendsmith-name purity only 21.8%), the Live☆Twin Home Extra-Deck lock that conflicts with Fiendsmith and Spright summons, and the absence of any recorded combo or win-rate telemetry. Popularity did not earn points, and card scores were not averaged; the score reflects the deck as a system.

Dimension scores

How the score was computed

Strategy profile: Control. Structural ≈ 63, Going First ≈ 62, Going Second ≈ 66, Meta = provisional, Tournament Reliability ≈ 60. Modifiers: Extra-Deck lock conflict (-2); Banlist exposure (-1); Multi-engine dilution (-2). Final formula: 0.80*Structural + 0.20*TournamentReliability + ContextModifiers (Meta provisional, no dated metagame sample)

Probability & combo summary

• Opening a starter: P(≥1) ≈ 0.9 · 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

• Six hand traps plus five negation texts give interaction on both turns
• Fourteen searcher-text cards make a starter very likely in the opening hand
• Three high-ATK Extra-Deck finishers (3300, 3000, 2800 ATK)
• Mulcharmy draw and Fiendsmith search/recursion help rebuild after exchanges
• Legal list with full 40/15 sizes and no violations

Weaknesses

• No side deck, so no post-side adaptability
• Low exact archetype purity (21.8%) across five sub-archetypes
• Live☆Twin Home Extra-Deck lock conflicts with Fiendsmith and Spright summons
• Hand traps and Droll & Lock Bird are dead without an opponent action
• No recorded combos or win-rate telemetry to measure floor or median

Critical choke points

• Live☆Twin Ki-sikil → Lil-la → Evil★Twin chain needs a Ki-sikil or Lil-la on the field before Evil★Twin link summons
• Searches through Secret Password and Sunny's Snitch depend on the Live☆Twin family being in the Deck
• Extra-Deck finishers are blocked on turns Live☆Twin Home is used

Recommended changes

Evidence & confidence

• Verified: Legal status, 40 main / 15 extra / 0 side, no violations; Maxx "C" Limited (1 copy), Droll & Lock Bird Semi-Limited (2 copies); Live☆Twin Home Extra-Deck summon restriction text; Searcher, hand-trap and removal text counts from card excerpts; Exact archetype purity 21.8% (12 of 55 archetype-tagged copies)
• Observed: Guide describes Fiendsmith Control with turn-1 disruption, turn-2 hand traps and slow board-breaking
• Inferred: P(>=1 starter in opening 5) ≈ 0.90 from searcher-text group; Consistency and brick estimates from hand-trap density; Ceiling and interaction quality from card text only (no boards); Going-first and going-second read from hand-trap and Droll density
• Provisional: Meta Power (no dated metagame sample); Matchup and format-fit scores (no tournament link); Post-side scores (no side deck in this format)
• 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, game-level, brick/starter/OTK rates) — those signals are Inferred or Unknown Meta Power is Provisional unless a dated metagame sample is supplied usage statistics marks Fiendsmith's Lacrima, Sequence and Requiem as not in this deck (in this deck false), but the cards array lists all three as Extra-Deck copies; the two sources disagree, so the missing core cards claim was not used deck.title is null; deck is unnamed