Fiendsmith Deck #704286 — Yu-Gi-Oh! Master Duel
45 Main, 15 Extra, incl. Cornfield Coatl x3, Gazelle the King of Mythical Claws x3, Mulcharmy Fuwalos x3. Created May 18, 2026 by YGO Mod.
Created by: YGO Mod (20517634)
Created On: 05/18/2026
Main Deck (45)
- Big-Winged Berfomet x1
- Cornfield Coatl x3
- Droll & Lock Bird x2
- Evil HERO Adusted Gold x1
- Evil HERO Sinister Necrom x1
- Fabled Lurrie x1
- Fiendsmith Engraver x2
- Gazelle the King of Mythical Claws x3
- Hecahands Breus x1
- Hecahands Gaigas x1
- Hecahands Ibtel x1
- Hecahands Yadel x1
- Lacrima the Crimson Tears x1
- Maxx "C" x1
- Mirror Swordknight x1
- Mulcharmy Fuwalos x3
- Nightmare Apprentice x3
- Ash Blossom & Joyous Spring x3
- Book of Eclipse x3
- Called by the Grave x1
- Chimera Fusion x3
- Crossout Designator x1
- Fiendsmith's Tract x1
- Forbidden Droplet x3
- The Hidden Hecahands x1
- Ib'al-Hecahands x1
- Yad'al-Hecahands x1
Extra Deck (15)
- Aerial Eater x1
- Berfomet the Mythical King of Phantom Beasts x1
- Chimera the King of Phantom Beasts x1
- Fiendsmith's Lacrima x1
- Guardian Chimera x1
- Hecahands Jauzah x1
- Hecahands Xeno x1
- Magnum the Reliever x1
- A Bao A Qu, the Lightless Shadow x1
- Fiendsmith's Requiem x1
- Fiendsmith's Sequence x1
- Moon of the Closed Heaven x1
- S:P Little Knight x1
- Chaos Angel x1
- D/D/D Wave High King Caesar x1
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Deck — Deck Power Evaluation
Final Contextual Deck Power: 35/100 (±10 · Confidence: Low)
| Overall score | Value |
|---|---|
| Structural Deck Power | 57 |
| Going First | 60 |
| Going Second | 58 |
| Meta Power | provisional |
| Tournament Reliability | 50 |
- Primary strategy: Midrange
- Secondary strategies: Control, Toolbox
- Format: master-duel
Legality
Main 45 / Extra 15 / Side 0 — status under the rules at evaluation time: Illegal. 1 violation(s).
Identity & game plan
- Win condition: Fiendsmith and Chimera/Hecahands extra-deck boards (Fiendsmith's Lacrima is not in the list; Chaos Angel, Guardian Chimera, Hecahands Xeno and D/D/D Wave High King Caesar carry the board); Chimera Fusion and Berfomet/Chimera Fusion recursion into Fusion boards, with Mulcharmy and Droll locks slowing the opponent
- Turn 1 (going first): Turn 1 Fiendsmith Engraver or Nightmare Apprentice / Gazelle searches into Chimera Fusion or Fiendsmith's Tract, then set up a hand-trap-protected board
- Turn 2 (going second): Hand-trap the opponent's first board (Ash Blossom, Maxx C, Droll and Lock Bird) and rebuild through Hecahands and Chimera extra-deck summons
- Recovery: Recursion from the GY through Fiendsmith Engraver, Lacrima the Crimson Tears, Mirror Swordknight and Cornfield Coatl, plus Hecahands Ibtel special summons
- After siding: No side deck (0 cards); no post-side plan exists
Why it scores here
The deck is scored as a system, not as an average of its cards. Its strongest attribute is interaction and recovery: 14 negation-text cards, 14 removal-text cards, six hand traps, and 19 searcher-text cards give it a reliable disruption layer and a steady stream of recursion. Its weakest attribute is the engine itself. The Fiendsmith core is only partly present (Engraver x2, Lacrima the Crimson Tears, Fiendsmith's Tract) while the three Fiendsmith Link/Fusion pieces that define the archetype at 100% usage are absent, so the Fiendsmith engine is thinner than its name suggests. The main deck runs three sub-archetypes (Hecahands, Chimera, Evil HERO) that dilute consistency. The deck is illegal in Master Duel because Called by the Grave is Forbidden and is run once, so the uncapped structural read of about 44 is capped to 35 and labelled theoretical only. Popularity and archetype usage confirm the list is real and accessible but earn no points, and no card scores were averaged. No side deck, no combo data and no meta sample means the post-side, matchup and meta dimensions remain provisional.
Dimension scores
| # | Dimension | Score | Evidence |
|---|---|---|---|
| D1 | Engine Accessibility & Consistency | 52 | Archetype-core group P(at least one in opening 5) about 0.86, but only a few true engine starters and three 100%-usage Fiendsmith extra pieces are missing (Inferred) |
| D2 | Opening-Hand Quality & Brick Management | 55 | Hypergeometric brick proxy about 0.14 for the core group; 17 singletons and six hand traps create some conflicting hands (Inferred) |
| D3 | Combo Conversion & Ceiling | 55 | No parseable boards; ceiling read from text as Chimera Fusion plus Chimera/Hecahands extra-deck boards (Inferred) |
| D4 | Combo Floor & Median Output | 45 | No recorded boards, so median output is a text-only read that the deck usually reaches a single board (Inferred) |
| D5 | Interruption Resilience & Route Redundancy | 62 | Six hand traps, negation text and recursion through Engraver, Lacrima and Coatl give independent answers after one disruption (Inferred) |
| D6 | Resource Economy, Recovery & Grind | 70 | 19 searcher-text cards and GY recursion (Mulcharmy, Coatl, Mirror Swordknight) sustain resource recovery (Inferred) |
| D7 | End-Board & Interaction Quality | 74 | 14 negation and 14 removal texts plus Ash, Droll and Maxx give broad layered interaction; Called by the Grave is illegal and does not count (Inferred) |
| D8 | Going-Second & Board-Breaking Power | 60 | Going-second hand-trap density (Droll, Maxx, Ash) with P(at least one hand trap in 6) about 0.60 offsets a weak board-breaker engine (Inferred) |
| D9 | Offensive Pressure & Closing Power | 65 | Ceiling boards with Chaos Angel 3500, Hecahands Xeno 3400 and Guardian Chimera 3300 give pressure, but the Fiendsmith Lacrima closer is absent (Verified stat / Inferred) |
| D10 | Main Deck Efficiency & Flexibility | 50 | 45 main with 27 distinct cards and 17 singletons; hand traps and tech cards use slots that the engine could otherwise use (Inferred) |
| D11 | Extra Deck Efficiency & Coverage | 55 | 15 distinct Extra cards spanning Fusion, Link, Synchro and XYZ with several engine-specific cards missing (Inferred) |
| D12 | Side Deck Adaptability | 15 | Side deck is empty (0 cards), so no post-side adaptability exists (Verified) |
| D13 | Matchup Coverage & Format Fit | 50 | No tournament link and no dated meta sample; archetype meta-share absent (Provisional) |
| D14 | Pilotability & Error Tolerance | 40 | Multiple sub-archetypes, many decision points and Fusion/Link material routing make this hard to pilot consistently (Inferred) |
How the score was computed
Strategy profile: Midrange. Structural ≈ 57, Going First ≈ 60, Going Second ≈ 58, Meta = provisional, Tournament Reliability ≈ 50. Modifiers: Banlist exposure (-8); No side deck (-4). Final formula: 0.80*Structural + 0.20*TournamentReliability (Meta provisional) = 55.6 uncapped; Illegal cap applied to 35 after modifiers (theoretical/structural only)
Probability & combo summary
- Opening a starter: P(≥1) ≈ 0.86 · key two-card combo ≈ — · full-brick estimate ≈ 0.14 (all Inferred)
- Combo output: best PowerIndex —, median —, board-per-starter —
- Turn order: 0 going-first lines vs 0 going-second lines
Strengths
- Broad layered interaction: 14 negation-text and 14 removal-text cards with six hand traps
- Strong searcher density (19 searcher-text cards) and GY recursion
- Extra Deck carries several high-ATK closers (Chaos Angel, Guardian Chimera, Hecahands Xeno)
Weaknesses
- Illegal in Master Duel: Called by the Grave is Forbidden and is run once
- Engine is thin: three 100%-usage Fiendsmith extra pieces are missing
- Three sub-archetypes dilute consistency (exact-name purity about 12%)
- No side deck at all
Critical choke points
- Fiendsmith Engraver x2 and Fiendsmith's Tract are the only engine starters for the Fiendsmith plan
- Hand-trap dependence for going second
Recommended changes
| Priority | Remove | Add | Reason |
|---|---|---|---|
| 1 | Called by the Grave | A legal copy-limit-compliant interaction or a second Fiendsmith starter | Clears the only legality violation so the deck can receive a normal Final score |
| 2 | One of the off-archetype tech slots | Fiendsmith's Lacrima and/or Fiendsmith's Sequence | Restores 100%-usage core Extra pieces that the engine is missing |
| 3 | None (side deck empty) | A 15-card side deck with hand traps and negation for matchups | Gives a post-side plan for best-of-3 and removes the D12 gap |
Evidence & confidence
- Verified: Illegal status: Called by the Grave is Forbidden in Master Duel and run one copy; Main 45, Extra 15, Side 0 within size rules; Usage core: Fiendsmith's Lacrima, Sequence and Requiem at 100% inclusion but absent from the list
- Observed: Usage stat: 8 of 12 core cards present (66.7%)
- Inferred: Hypergeometric starter and brick probabilities; Engine ceiling and floor read from card text; Interaction layering from text role hints
- Provisional: Meta Power and D13 matchup fit (no dated sample); Tournament reliability (no record)
- 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 for going first/second, matchups, brick or starter rates Meta Power provisional without a dated metagame sample Side deck empty: post-side plan cannot be evaluated
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