Fiendsmith Deck #750666 — Yu-Gi-Oh! Master Duel

Deck — Deck Power Evaluation

Final Contextual Deck Power: 35/100 (±5 · Confidence: Low)

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

Legality

Main 40 / Extra 15 / Side 0 — status: Illegal. 1 violation(s).

Identity & game plan

• Win condition: Fiendsmith/Elfnote board presence converted into a late-game boss (Fiendsmith's Requiem, Elfnote Seraphim Strelitzia, Diabellstar the Black Witch) with recurring searches; Snake-Eye / Junk / Fleur synchro and link boards as a splash-driven backup route
• Turn 1 (going first): Turn 1 disruption (Ash Blossom, Effect Veiler, Elfnote Power Patron) and searchers to build a single-threat engine; the evidence gives no verified starter line
• Turn 2 (going second): Six-card hand with a hand-trap (about 65% to hold one) to slow the opponent's engine, then rebuild through search and recursion
• Recovery: Recover through searchers and GY recursion (Fiendsmith Engraver, Shining Sarcophagus, Fiendsmith's Tract); searcher text is present in 22 Main Deck copies
• After siding: Not applicable: the deck runs no Side Deck (side_count 0) and Master Duel evidence carries no post-side data

Why it scores here

This list is Illegal because Snake-Eyes Poplar runs 2 copies against a limit of 1, so it receives a capped, structural-only score rather than a normal Final Contextual score. The deck's structure is a Fiendsmith control shell with heavy searcher and hand-trap density (22 searcher-text and 6 hand-trap copies), which supports its interaction score (D7) and its recovery through recursion. Engine consistency is only moderate: Fiendsmith is 5 exact-name copies out of a 55-card list with roughly 9% exact-name purity, and the rest is spread across Elfnote, Snake-Eye, Dark Magician, Fleur, Junk and other sub-archetypes, so the starter probability (about 0.24 for the 2-copy Engraver in a 5-card hand) is low. No combo boards exist, so conversion and output scores (D3/D4) rest on text reads only. The score reflects the deck as a system with its brick and coherence risk, not an average of card scores and not the archetype's popularity.

Dimension scores

How the score was computed

Strategy profile: Control primary; Stun weights not blended. Structural ≈ 42, Going First ≈ 40, Going Second ≈ 44, Meta = provisional, Tournament Reliability ≈ 40. Modifiers: illegal copy limit (-7). Final formula: No reliable metagame (Meta provisional): 0.80*Structural(42) + 0.20*TournamentReliability(40) = 41.8, then -7 illegal-list cap = 35 (structural-only, capped)

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 searcher and recursion text supports consistent hands and rebuilds
• Six hand traps plus negation and removal text give broad interaction
• Legal copies of every Limited card (Bonfire, Snake-Eye Ash, WANTED) are at 1 copy

Weaknesses

• Illegal list: Snake-Eyes Poplar runs 2 copies against a limit of 1
• Low exact-name archetype purity (9.1%) across Fiendsmith, Elfnote, Snake-Eye, Junk and Fleur pieces
• No combo data, so the output ceiling and floor are unverified
• No side deck

Critical choke points

• Fiendsmith Engraver (2 copies) is the main engine enabler; P(≥1 in a 5-card hand) ≈ 0.24
• Snake-Eyes Poplar over the copy limit must be fixed before any normal score can apply

Recommended changes

Evidence & confidence

• Verified: Legality: Illegal, Snake-Eyes Poplar 2 copies vs limit 1; Main 40 and Extra 15 within size rules; Side 0; Banlist status of Bonfire, Snake-Eye Ash, Snake-Eyes Poplar and WANTED: Limited, all at legal copies; Archetype exact-name purity 9.1%; searcher text 22; hand-trap 6
• Inferred: Hypergeometric starter, core and hand-trap probabilities; Dimension scores D1-D14 based on card text and composition; Strategy classification as Control with Stun secondary, from guide text and interaction density
• Provisional: Meta Power is null: no dated metagame sample; D13 format fit: no tournament data
• 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 Deck is Illegal; the normal score cannot be applied until the copy-limit violation is fixed