Fiendsmith Deck #773172 — Yu-Gi-Oh! OCG

Deck — Deck Power Evaluation

Final Contextual Deck Power: 30/100 (±8 · Confidence: Medium)

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

Legality

Main 55 / Extra 12 / Side 0 — status under the rules at evaluation time: Illegal. 2 violation(s).

Identity & game plan

• Win condition: Fiendsmith Fusion/Link boards (Rextremende, Lacrima, Agnumday) built from Fiendsmith engine cards; Magical Musket Link and board-control pressure (Musketeer Max, Mastermind Caspar) plus Ecclesia Synchro
• Turn 1 (going first): Open a Fiendsmith starter (Lacrima, Engraver, Tract, Requiem line), search or recycle through Lurrie/Engraver, then build a Link or Fusion board while holding Ash Blossom and Droll for disruption
• Turn 2 (going second): Use hand traps (Ash Blossom, Ghost Ogre and Snow Rabbit, Droll and Lock Bird, Maxx C, Red Reboot) to clear the opponent's board, then rebuild Fiendsmith material through Lacrima or Engraver
• Recovery: Recursion from the GY: Lacrima and Engraver special summon LIGHT Fiends, Lurrie revives from discard, Fiendsmith Sequence and Requiem re-equip for pressure
• After siding: Not assessable: the deck runs no side deck (side_count 0), so there is no post-side plan to score

Why it scores here

This list is Illegal in OCG: Albion the Branded Dragon and D/D/D Wave High King Caesar are Forbidden and each run one copy, so the structural score is capped and labelled theoretical only. Consistency is middling: the archetype core has roughly a 61% chance of at least one card in a 5-card opening hand (hypergeometric, Inferred), but 56 of 111 engine-relevant copies are off-archetype (Magical Musket, Mulcharmy, Dominus, Branded), so hands often hold conflicting or dead pieces. Interaction is the deck's strongest system: 7 hand traps, 11 negation-text cards and 18 removal-text cards give it breadth on both turns (Inferred semantic read). The combo ceiling and median cannot be measured because no recorded boards exist, so both are text-only estimates. No side deck, no tournament link and no win-rate data mean meta and post-side claims are Provisional, and popularity of the Fiendsmith archetype earned no points. The score was built from the deck as a system, not by averaging card scores.

Dimension scores

How the score was computed

Strategy profile: Midrange primary; Combo secondary is recorded but not blended into weights. Structural ≈ 51, Going First ≈ 47, Going Second ≈ 42, Meta = provisional, Tournament Reliability ≈ 45. Modifiers: banlist exposure (-9); engine conflicts (-3); illegal-deck cap (-18). Final formula: No reliable metagame: 0.80*Structural + 0.20*TournamentReliability = 0.80*51 + 0.20*45 = 49.8; modifiers -12 gives 37.8; Illegal-deck cap sets final to 30 (theoretical/structural-only). D13 dropped from Structural per meta-neutral rule (weights renormalised over 95).

Probability & combo summary

• Opening a starter: P(≥1) ≈ 0.61 · 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

• Strong interaction suite: 7 hand traps plus Droll, Maxx C, Red Reboot and Solemn Judgment
• Core Fiendsmith engine present: Lacrima, Lurrie, Engraver, Tract and Requiem line
• Extra Deck carries multiple high-end boards (Rextremende 3000 ATK, Lacrima, Agnumday)

Weaknesses

• Illegal in OCG: two Forbidden Extra Deck cards are run
• Low exact-archetype purity (16.4%) with many off-archetype copies
• No side deck registered, so no post-side adaptability
• Much of the Main Deck is non-monster (31 slots) which raises brick risk

Critical choke points

• Fiendsmith engine starters (Lacrima, Engraver, Requiem) are each limited to 1 copy
• Removing or negating Lacrima or Engraver leaves the Fusion route without its LIGHT Fiend material

Recommended changes

Evidence & confidence

• Verified: Illegal status from two Forbidden Extra Deck cards (Albion, Caesar) each run once; Main 55 and Extra 12 are within OCG size rules (40-60 and 0-15); Limited and Semi-Limited copy counts are respected; Exact-name Fiendsmith purity is 16.4%
• Observed: Usage statistics: 6 of 11 archetype-core cards present (54.5%)
• Inferred: Hypergeometric starter access about 0.61 for the archetype core; Interaction density is high from text and role flags; Off-archetype copies create engine conflicts
• Provisional: Meta Power (no dated metagame sample); Matchup and format fit (D13); Post-side plan (no side deck); Combo ceiling and median (no recorded boards)
• Data gaps: no combos supplied: combo floor, median and ceiling are text-only inference no tournament link: archetype meta-share and per-pilot record absent no win-rate telemetry for going-first/second, matchup, or brick/starter rates Meta Power is Provisional unless a dated metagame sample is supplied no side deck registered for this OCG list