Fiendsmith Deck #772670 — Yu-Gi-Oh! OCG

40 Main, 15 Extra, incl. Fiendsmith Engraver x3, Live☆Twin Ki-sikil x3, Live☆Twin Ki-sikil Frost x3. Created Oct 21, 2026 by YGO Mod.

Deck Fiendsmith OCG

Created by: YGO Mod (20517634)

Created On: 10/21/2026

 
 


Official AI Deck Power Analysis
MidrangeConfidence: LowEvaluated Oct 22, 2026
30± 8/ 100
Power Score
Structural 51
Reliability 40
Going First 48
Going Second 54

Deck — Deck Power Evaluation

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

Overall score Value
Structural Deck Power 51
Going First 48
Going Second 54
Meta Power provisional
Tournament Reliability 40
  • Primary strategy: Midrange
  • Secondary strategies: Combo, Stun
  • Format: ocg

Legality

Main 40 / Extra 15 / Side 0 — status under the rules at evaluation time: Illegal. 2 violation(s).

Identity & game plan

  • Win condition: Extra Deck pressure from Fiendsmith and Evil Twin Link/Fusion monsters (Fiendsmith's Rextremende, Fiendsmith's Desirae, Evil Twin's Trouble Sunny), inferred from card text only; Live Twin / Evil Twin / Ki-sikil / Lil-la board-building and Link Summons, inferred from card text only
  • Turn 1 (going first): Inferred from text: open a starter from the Live Twin, Ki-sikil or Lil-la group, use searchers (Secret Password, Fiendsmith's Tract, Fiendsmith Engraver) to find an engine piece, then Link or Fusion Summon from the Extra Deck. No recorded boards to confirm the sequence.
  • Turn 2 (going second): Hold up hand traps (Ash Blossom, Infinite Impermanence, Ghost Ogre & Snow Rabbit, Droll & Lock Bird, Nibiru, Mulcharmy Fuwalos) to disrupt the opponent's first turn, then convert through the same engine.
  • Recovery: Inferred: Fiendsmith monsters that return from the GY (Lacrima the Crimson Tears, Fiendsmith's Sequence, Evil Twin revival effects) plus multiple starter families offer some route redundancy.
  • After siding: Not assessable: the deck runs no side deck (0 cards), so there is no post-side plan.

Why it scores here

The deck is illegal in OCG: Ash Blossom & Joyous Spring runs 3 copies against a limit of 2, and Fiendsmith Engraver runs 3 against a limit of 1. Its legal-copy violations therefore cap the final score, and the figures below describe the structure only. The Structural score (51) comes from the system: searcher access (about 0.78 chance of at least one searcher in an opening 5), a strong interaction suite of 13 hand-trap and tech cards, and several high-ATK Extra Deck closers. Consistency and median output are held down because the 40-card list is spread across four sub-archetypes (Fiendsmith is only 23.6% exact-name purity; Live Twin, Mulcharmy, Evil Twin and Ki-sikil fill the rest), and because the hand-trap density raises the chance of dead cards. No combo boards were recorded, so the ceiling and floor are text-only inference. Archetype popularity earned no points, and card scores were not averaged.

Dimension scores

# Dimension Score Evidence
D1 Engine Accessibility & Consistency 55 P(at least one searcher in opening 5) ≈ 0.78; P(at least one of the 9-copy archetype core) ≈ 0.74; 4 sub-archetypes split the starters (Inferred)
D2 Opening-Hand Quality & Brick Management 45 13 hand-trap/tech cards and 2-3 copies of several off-engine cards; P(at least one hand trap in going-second 6) ≈ 0.92 with a real dead-card risk (Inferred)
D3 Combo Conversion & Ceiling 50 No parseable combo boards; ceiling read from card text only, for Extra Deck Link/Fusion chains (Inferred)
D4 Combo Floor & Median Output 35 No recorded boards, so the median is unmeasured and set low for lack of data (Provisional)
D5 Interruption Resilience & Route Redundancy 55 Several hand traps and recursion effects (Lacrima, Sequence, Evil Twin revival) give alternate lines; the sub-archetypes overlap only partly (Inferred)
D6 Resource Economy, Recovery & Grind 50 Searchers and GY recursion offset spend, but the many non-engine cards cost resources (Inferred)
D7 End-Board & Interaction Quality 65 Lacrima's -600 ATK field effect, Desirae's negation, plus Ash, Impermanence and Ghost Ogre; quality is high but counts depend on illegal copy totals (Inferred)
D8 Going-Second & Board-Breaking Power 62 13 hand traps for going second, with several negates and removal effects from text (Inferred)
D9 Offensive Pressure & Closing Power 65 Several 2800–3300 ATK Extra Deck closers (Rextremende, Desirae, Trouble Sunny, TY-PHON) (Verified stats, Inferred use)
D10 Main Deck Efficiency & Flexibility 50 40 main cards over 18 distinct names; 76% of copies are off exact-name archetype and the deck is a mixed toolbox (Inferred)
D11 Extra Deck Efficiency & Coverage 55 15 Extra Deck cards (9 Link, 4 Fusion, 2 Xyz), mostly 1-of, with strong coverage but several off-plan Extra choices (Verified composition)
D12 Side Deck Adaptability 10 Side deck is empty, so there is no adaptability in the list (Verified composition)
D13 Matchup Coverage & Format Fit 45 No tournament link and no dated meta sample; archetype share unavailable (Provisional)
D14 Pilotability & Error Tolerance 45 Multi-archetype engine with several Link and Fusion steps and many decision points (Inferred)

How the score was computed

Strategy profile: Midrange primary; Stun shown as secondary only, not blended into the weights. Structural ≈ 51, Going First ≈ 48, Going Second ≈ 54, Meta = provisional, Tournament Reliability ≈ 40. Modifiers: banlist exposure (-6); engine conflicts (-4). Final formula: No reliable metagame: 0.80*Structural(51) + 0.20*TournamentReliability(40) = 48.8, plus modifiers (-10) = 38.8, then capped at 30 because the deck is Illegal (theoretical/structural-only)

Probability & combo summary

  • Opening a starter: P(≥1) ≈ 0.78 · 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

  • Searcher density (10 cards) gives about 0.78 chance of at least one searcher in the opening 5
  • Broad interaction suite: 13 hand-trap/tech cards and 8 negation effects
  • High-ATK Extra Deck closers (2800–3300 ATK) and Lacrima's field effect

Weaknesses

  • Illegal copy counts on Ash Blossom (3 vs 2) and Fiendsmith Engraver (3 vs 1)
  • Low archetype purity (23.6%) and four sub-archetype engines competing for slots
  • Hand-trap-heavy main deck raises dead-card risk when no engine piece is drawn
  • No side deck (0 cards)

Critical choke points

  • Opening access to any searcher (about 0.78 in 5) gates most lines
  • Engraver copy count is illegal, so the real legal engine has one fewer searcher
  • Heavy reliance on Extra Deck Link/Fusion summons from a 15-card Extra Deck
Priority Remove Add Reason
1 1 copy of Fiendsmith Engraver a legal, non-Limited searcher or a 1-of Fiendsmith support card Restores the Limited copy cap (Engraver is Limited, 1 legal copy); the deck cannot be scored as legal until fixed
2 1 copy of Ash Blossom & Joyous Spring a non-Semi-Limited hand trap or a tech card Restores the Semi-Limited cap (2 legal copies); the third copy is illegal
3 1–2 of the off-archetype Mulcharmy or Ki-sikil cards Fiendsmith-archetype starters or Extra Deck pieces Would raise exact-name purity and reduce the engine conflicts counted in the modifiers

Evidence & confidence

  • Verified: Main 40 / Extra 15 / Side 0 counts (size rules met); Copy-limit violations: Ash Blossom 3 vs 2; Fiendsmith Engraver 3 vs 1; Archetype purity 23.6% and spread; Searcher probability 0.78 and hand-trap probability 0.92 (hypergeometric)
  • Observed: Usage statistics: Fiendsmith core cards and inclusion rates (but see the data gap on the Extra Deck)
  • Inferred: Going-first and going-second plans from card text; Consistency and brick estimates (D1, D2); Interaction quality from negation and removal text (D7, D8); Pilotability from step complexity (D14)
  • Provisional: Meta power (null, no dated meta sample); Matchup fit (D13); Tournament reliability (40)
  • Data gaps: Illegal list: final score capped at 30; the structural read is theoretical only No combos supplied: combo floor, median and ceiling are text-only inference Usage-stat in_this_deck flags appear to ignore the Extra Deck: Fiendsmith's Requiem, Fiendsmith's Sequence, Fiendsmith's Lacrima and Fiendsmith's Desirae are in the Extra zone of this deck but marked not in deck No tournament link: archetype meta-share and match record absent No win-rate telemetry (going-first/second, matchup, brick/starter rates) Meta Power provisional without a dated metagame sample No side deck, so post-side performance is unknown

More OCG Info

Fiendsmith

Fiendsmith Breakdown

 
 

 

 

 

 

 

 
 

 

 
https://metaduelist.com/
Top