Fiendsmith Deck #770261 — Yu-Gi-Oh! OCG

Deck — Deck Power Evaluation

Final Contextual Deck Power: 25/100 (±10 · Confidence: Low)

• Primary strategy: Midrange
• Secondary strategies: Combo, Stun
• Format: ocg

Legality

Main 40 / Extra 15 / Side 0 — status: Illegal. 6 violation(s).

Identity & game plan

• Win condition: Synchro, Link and Fusion boards led by high-ATK Ashtra and Fiendsmith monsters (Ashtraja Susanoo 3300, Juraishin 3100, Akasuna 3000, Ashtraya Mikumari-no-Mikoto 3000), with Lacrima's -600 ATK field effect as support.; Ashtra recursion through Ashtrashen and the Ashtra Traps, converting a face-down card into a repeated Special Summon engine.
• Turn 1 (going first): Set a trap, reveal it to Special Summon an Ashtra monster from hand (Yoa, Mikumari, Kuzuha or Akasuna), then Synchro Summon through the Tuner-based Synchro Extra Deck options. Lacrima and Lurrie provide the Fiendsmith line where the Extra Deck allows.
• Turn 2 (going second): Hold Ash Blossom, Infinite Impermanence, Maxx C or Synchro Emergency to answer the opponent's first summon or search, then pivot to the Ashtra board. Dominus Impulse and Dominus Spiral cover special summon lines.
• Recovery: Recover Ashtra monsters and Ashtra Traps from the GY via Ashtrashen and the Ashtra Traps' Special Summon effects, then rebuild the Synchro board from the Tuners.
• After siding: Not evaluable: the deck runs no side deck, so there is no post-side plan.

Why it scores here

This OCG list is illegal: five Forbidden cards (Number 42, Reprodocus, Auroradon, Caesar, Baronne de Fleur) occupy five of the 15 Extra Deck slots, so the deck can only be scored as a theoretical structural read and its final score is capped low. Structurally, the deck can often open a live Ashtra starter, since 17 traps let the face-down revive effects of Yoa, Mikumari, Kuzuha and Akasuna work, and its hand traps (Ash Blossom, Impermanence, Maxx C, Synchro Emergency, Dominus Impulse) give it a respectable going-second interaction package. Its offensive closers (Susanoo, Juraishin, Akasuna, Mikumari-no-Mikoto) carry high ATK, but the lack of a side deck, the 10.9% exact archetype purity and the absence of combo or tournament evidence keep the median output and resilience modest. Popularity was not credited, and the score comes from the structure of the system, not from averaging the individual card power scores.

Dimension scores

How the score was computed

Strategy profile: Midrange 100%; Combo secondary disclosed, not blended into weights. Structural ≈ 50, Going First ≈ 48, Going Second ≈ 55, Meta = provisional, Tournament Reliability ≈ 40. Modifiers: banlist_exposure (-8); no_side_deck (-4). Final formula: Pre-cap: 0.80*Structural(50) + 0.20*TournamentReliability(40) + Modifiers(-12) = 36. Illegal list: capped to 25 as theoretical/structural-only per rubric Step 2; no normal Final Contextual score issued.

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 hand-trap package (Ash Blossom, Impermanence, Maxx C, Synchro Emergency, Dominus Impulse, Dominus Spiral)
• High-ATK Synchro and Link closers (Susanoo, Juraishin, Akasuna, Mikumari-no-Mikoto)
• 17 traps supporting the Ashtra face-down revive lines

Weaknesses

• Illegal in OCG: five Forbidden cards in the Extra Deck
• No side deck, so no best-of-3 adaptation
• Low archetype purity (10.9%) with 49 off-archetype copies
• No combos, guides or tournament evidence

Critical choke points

• Any single Ashtra starter depends on a face-down card being present, so a set-card-hating opponent can stall the engine
• Extra Deck legality: removing the five Forbidden cards leaves only 10 Extra Deck options

Recommended changes

Evidence & confidence

• Verified: Legality: 5 Forbidden cards in Extra Deck, 40/15/0 counts; Copy histogram and type spread match the card list; Listed ATK/DEF values for the closers
• Inferred: Starter access and brick estimates from hypergeometric odds and card text; Interaction density from text hints; Going-first and going-second read from hand-trap coverage
• Provisional: Meta power and matchup fit (no dated metagame sample); Median and floor output (no recorded boards)
• Data gaps: No recorded combos, so ceiling, median and floor are text-only inference No tournament link, so no archetype meta-share or per-pilot record No win-rate telemetry for going-first, going-second or matchups Meta power is Provisional unless a dated metagame sample is supplied No side deck, so post-side performance is unmeasurable