Fiendsmith Deck #773757 — Yu-Gi-Oh! TCG

Deck — Deck Power Evaluation

Final Contextual Deck Power: 30/100 (±10 · Confidence: Low)

• Primary strategy: Combo
• Secondary strategies: Toolbox, Control
• Format: tcg

Legality

Main 53 / Extra 15 / Side 0 — status under the rules at evaluation time: Illegal. 4 violation(s).

Identity & game plan

• Win condition: Fiendsmith Extra-Deck engine (Link/Fusion Fiendsmith monsters) converting into a boss with Ryzeal/Xyz pressure; Ryzeal Detonator and Ryzeal Duo Drive ATK pressure through the Xyz/Link bodies
• Turn 1 (going first): Search and set up Fiendsmith via Engraver and Tract, then convert through the Extra Deck; hand traps and Solemn Judgment cover the early board. Engraver copies beyond one are illegal, so this plan is only structural.
• Turn 2 (going second): Hold hand traps (10 in the main deck, Ash Blossom and Infinite Impermanence among them) to answer the opponent's first summon or search, then continue through Ryzeal and Fiendsmith bodies.
• Recovery: Recover from GY through Lacrima, Ryzeal Cross and Fiendsmith in Paradise, and rebuild the Extra-Deck engine from the GY.
• After siding: Not available: the deck runs 0 side cards, so no post-side plan can be evaluated.

Why it scores here

The deck's Fiendsmith core reliably gets a searcher (Engraver, Tract) and a Link/Fusion route into the Extra Deck, with an P(at least one archetype core card in a 5-card opening hand) of about 0.74 (Inferred). Its interaction density is high: 10 hand traps and 17 negation-text cards give it a strong end-board and going-second answer set (D7 60, Inferred from card text). Consistency is held back by low archetype purity (14.7% exact-name copies, 58 off-archetype copies), a tech-heavy main deck, and no side deck. No combo boards were recorded, so the conversion and median dimensions are text-only inference, not observed output. The score is also capped because the list is Illegal: three cards are over the copy limit and Triple Tactics Talent is Forbidden. Popularity and archetype usage were not counted as power, and card scores were not averaged into the deck score.

Dimension scores

How the score was computed

Strategy profile: Combo. Structural ≈ 50, Going First ≈ 50, Going Second ≈ 48, Meta = provisional, Tournament Reliability ≈ 40. Modifiers: banlist exposure (-12). Final formula: 0.80*Structural + 0.20*TournamentReliability + ContextModifiers = 0.80*50 + 0.20*40 - 12 = 36, capped to 30 because the list is Illegal (Meta provisional)

Probability & combo summary

• Opening a starter: P(≥1) ≈ 0.74 · 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

• Fiendsmith searcher plus Extra-Deck engine gives a clear primary route
• 10 hand traps and high negation-text density for interaction
• Extra Deck covers Link, Xyz, Fusion and Synchro with 15 cards

Weaknesses

• Illegal list: copy limits exceeded on Ash Blossom, Solemn Judgment and Fiendsmith Engraver
• Triple Tactics Talent is Forbidden in this format
• Low archetype purity (14.7%) and 58 off-archetype copies weaken the engine
• No side deck, so no best-of-3 adaptation

Critical choke points

• Fiendsmith Engraver: only 1 legal copy but 3 run, so the searcher engine breaks if the legal copy is not drawn
• Fiendsmith's Tract and Lacrima: 1 legal copy each, single points of access to the Fiendsmith line

Recommended changes

Evidence & confidence

• Verified: Main deck 53 cards, Extra deck 15 cards, side 0 cards (within size rules); Copy-limit violations and Forbidden Triple Tactics Talent; Extra-Deck breakdown: 4 Link, 8 Xyz, 2 Fusion, 1 Synchro; Archetype purity 14.7% exact name
• Inferred: P(>=1 archetype core card in opening hand of 5) = 0.74; Hand-trap interaction density from text and role flags; Brick risk from tech density and singleton spread; Going-second hand-trap coverage 0.73
• Provisional: Meta Power (null, no dated metagame sample); Matchup fit and tournament reliability (no tournament link)
• 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, matchup or brick/starter rates usage statistics marks Fiendsmith's Sequence, Requiem and Desirae as not in deck, but the cards array lists them in the Extra Deck; the cards array was trusted Meta Power is provisional unless a dated metagame sample is supplied