Fiendsmith Deck #770645 — Yu-Gi-Oh! Master Duel

Deck — Deck Power Evaluation

Final Contextual Deck Power: 43/100 (±8 · Confidence: Medium)

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

Legality

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

Identity & game plan

• Win condition: Mid-to-late board pressure from Extra Deck finishers (Ame no Murakumo no Mitsurugi, Divine Golden Shadow Dragon Dragluxion, Fiendsmith's Lacrima, Number C104) after the hand traps and floodgates have slowed the opponent; Yummy and Mulcharmy engine lines that can be started by a Link-1 or Level-2 Synchro monster
• Turn 1 (going first): Turn 1 disruption (Ash Blossom, Droll & Lock Bird, Maxx C) plus searchers (Piri Reis Map, Mitsurugi no Mikoto Saji, Fiendsmith Engraver) to find a Link-1 or Level-2 starter for a Yummy or Fiendsmith line
• Turn 2 (going second): Use the six-card hand to hold hand traps (Ash Blossom x3, Droll x2, Maxx C) for the opponent's opening, then rebuild through Mitsurugi and Fiendsmith searches; floodgates only when the own engine is not blocked by them
• Recovery: Fiendsmith's Lacrima and Fiendsmith's Requiem GY recursion, Mulcharmy draw effects, and Mitsurugi Prayers to re-add a Mitsurugi monster
• After siding: No side deck is registered (side_count 0); no post-side plan can be evaluated

Why it scores here

The list is legal and its restricted copies are all within the limit, so it receives a normal contextual score. It is a Toolbox build that spreads its 40 Main Deck slots across at least four engines (Yummy, Mitsurugi, Fiendsmith, Mulcharmy) plus floodgates and hand traps, so its archetype purity is only 10.9%. Its consistency is moderate: a three-copy starter has about a 34% chance of appearing in a five-card opening hand, and the hand-trap group has about a 65% chance of at least one hit going second. Interaction is the strongest part of the system, with six hand traps, negations, and several end-board removal effects, while the closing power comes from high-ATK Extra Deck finishers. The score does not come from averaging the card scores and does not come from the Fiendsmith name or any popularity signal. The score is pulled down by engine conflict: the two floodgates that block Special Summons also block the Special Summon starters that the Yummy, Mitsurugi and Fiendsmith lines need. No combo boards, tournament data or side-deck data were supplied, so the combo and meta components rest on structure and inference alone.

Dimension scores

How the score was computed

Strategy profile: Toolbox. Structural ≈ 52.5, Going First ≈ 50, Going Second ≈ 55, Meta = provisional, Tournament Reliability ≈ 45. Modifiers: Engine conflict (-4); Low archetype purity (-3); Banlist exposure (-1). Final formula: 0.80*Structural + 0.20*TournamentReliability + ContextModifiers (Meta provisional) = 0.80*52.5 + 0.20*45 - 8 = 43

Probability & combo summary

• Opening a starter: P(≥1) ≈ — · 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: six hand traps, two Droll copies, Jinzo and Spell Canceller
• Several searchers (14 searcher-text cards) and GY recursion for resource regeneration
• Extra Deck fully used with broad Link, Synchro, Xyz and Fusion coverage
• High-ATK finishers: Ame no Murakumo 3200, Number C104 3000, Dragluxion 2500

Weaknesses

• Three engines plus floodgates compete for the same hand, so many hands are functional only in part
• Floodgates that block Special Summons conflict with the deck's own Special Summon lines
• Low archetype purity (10.9%) and 21 singleton Main Deck slots reduce coherence
• No side deck, so no post-side adaptation is possible

Critical choke points

• Access to a Link-1 or Level-2 Synchro monster to start the Yummy lines
• The Limited single copies (Maxx C, Herald of the Arc Light, Cupsy Yummy, Mitsurugi Prayers) that carry the interaction and searching

Recommended changes

Evidence & confidence

• Verified: Legality: all restricted copies are within legal_copies; 40 Main and 15 Extra; Card text and stats for the 55 resolved cards; Archetype purity 10.9% and copy histogram
• Inferred: Hypergeometric opening-hand probabilities; Brick, starter and engine-conflict reads from card text; Going-first and going-second split estimates
• Provisional: Meta Power (no dated metagame sample); Tournament reliability and matchup fit (no tournament link); Side-deck adaptability (no side deck registered)
• 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 or OTK rates) Usage-statistics core list (25 cards, 0 present) names Tearlaments, Kashtira and Imsety cards that do not belong to this archetype, so the stat appears mis-keyed and was not used No side deck registered Meta Power is Provisional unless a dated metagame sample is supplied