Shaddoll Deck #772191 — Yu-Gi-Oh! OCG

55 Main, 14 Extra, incl. Gem-Knight Nepyrim x3, Gem-Knight Quartz x3, Mulcharmy Fuwalos x3. Created Oct 21, 2026 by YGO Mod.

Deck Shaddoll OCG

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Created by: YGO Mod (20517634)

Created On: 10/21/2026

 
 

Official AI Deck Power Analysis
ToolboxConfidence: LowEvaluated Oct 21, 2026
51± 10/ 100
Power Score
Structural 55
Reliability 50
Going First 58
Going Second 56

Deck — Deck Power Evaluation

Final Contextual Deck Power: 51/100 (±10 · Confidence: Low)

Overall score Value
Structural Deck Power 55
Going First 58
Going Second 56
Meta Power provisional
Tournament Reliability 50
  • Primary strategy: Toolbox
  • Secondary strategies: Midrange, Combo
  • Format: ocg

Legality

Main 56 / Extra 14 / Side 0 — status: Legal with warning.

Identity & game plan

  • Win condition: Fusion Summon Gem-Knight boss monsters (Lady Brilliant Diamond 3400 ATK, Master Diamond 2900 ATK, Lady Rose Diamond 2700 ATK) from the Extra Deck, supported by Shaddoll Fusion and Gem-Knight searchers; Link and Fusion follow-up from Gem-Knight Phantom Quartz, Gem-Knight Seraphinite and Gem-Knight Topaz; Shaddoll Dragon and Naelshaddoll Ariel as Shaddoll board presence
  • Turn 1 (going first): Search a Gem-Knight with Gem-Armadillo or Nepyrim, then Fusion Summon or Link Summon into a Gem-Knight boss while holding interaction (Infinite Impermanence, Solemn Judgment) for the opponent's response
  • Turn 2 (going second): Use hand traps (Ghost Belle, Droll and Lock Bird, Nibiru, Infinite Impermanence) to break the opponent's opening, then rebuild with Gem-Knight searchers and Fusion Spells
  • Recovery: Gem-Knight Fusion and Gem-Knight Hollowcore recur from the GY and Pot of Sloth refills the hand; Naelshaddoll Ariel can reclaim banished Shaddoll monsters
  • After siding: Not available: the deck has no Side Deck, so no post-side plan exists and the best-of-3 adaptation is empty

Why it scores here

The deck is a Gem-Knight-led Toolbox list with a thin Shaddoll core: only 6 exact-name Shaddoll copies, while 27 cards are Gem-Knight. Its consistency rests on 15 searcher-text cards, which give about an 80% chance of at least one searcher in a 5-card opening hand (Inferred). Its ceiling comes from Gem-Knight boss Fusion Monsters and a wide interaction suite: Infinite Impermanence, Solemn Judgment, Droll and Lock Bird, Ghost Belle, Harpie's Feather Duster, Lightning Storm and Heat Wave. The score was built from the system: opening reliability, interaction density, resilience and closing power, not from averaging card scores. Popularity did not earn points, since usage stats show the list omits five of nine core Shaddoll cards, and it has no Side Deck, which limits the best-of-3 plan. Confidence is Low because the list has no recorded combos, no tournament link and one unresolved passcode.

Dimension scores

# Dimension Score Evidence
D1 Engine Accessibility & Consistency 62 P(>=1 searcher in hand5) ~0.80 from 15 searcher-text cards; Gem-Knight starters are redundant but Extra-dependent (Inferred)
D2 Opening-Hand Quality & Brick Management 50 56 main with 15 tech and 7 hand traps; several dead-in-hand cards (Solemn, Droll, Heat Wave) raise the brick rate (Inferred)
D3 Combo Conversion & Ceiling 55 No recorded boards; Lady Brilliant Diamond (3400 ATK) and Master Diamond ceiling read from card text only (Inferred)
D4 Combo Floor & Median Output 45 Median output unknown: no combos supplied, floor is text-only inference (Inferred)
D5 Interruption Resilience & Route Redundancy 55 Two Gem-Knight searchers, Gem-Armadillo and Nepyrim give multiple lines, but most engine lines share the Fusion Extra Deck (Inferred)
D6 Resource Economy, Recovery & Grind 58 Pot of Sloth, Mulcharmy draw effects and Gem-Knight Fusion recursion from the GY support resource regeneration (Inferred)
D7 End-Board & Interaction Quality 68 Infinite Impermanence, Solemn Judgment, Droll and Lock Bird, Ghost Belle, Feather Duster, Lightning Storm, Heat Wave (Verified card text; density Inferred)
D8 Going-Second & Board-Breaking Power 60 Seven hand traps and Droll-style lock cards challenge a going-second board; board-breaker density from text (Inferred)
D9 Offensive Pressure & Closing Power 62 Gem-Knight bosses reach 2700-3400 ATK with Limited-copy Master Diamond at 2900 ATK (Verified)
D10 Main Deck Efficiency & Flexibility 55 56 main cards within the 40-60 OCG range; 15 tech cards dilute engine density (Verified size, Inferred efficiency)
D11 Extra Deck Efficiency & Coverage 60 14 Extra cards: 10 Fusion and 4 Link; Gem-Knight Fusions need specific materials, but the mix is flexible (Inferred)
D12 Side Deck Adaptability 20 Side Deck is empty; no post-side adaptability exists (Verified)
D13 Matchup Coverage & Format Fit 50 No tournament link or dated meta sample; matchup fit is Provisional
D14 Pilotability & Error Tolerance 45 Several multi-step Fusion lines and branching decision points; error tolerance is moderate (Inferred)

How the score was computed

Strategy profile: primary Toolbox 100%; secondary Midrange used only for context. Structural ≈ 55, Going First ≈ 58, Going Second ≈ 56, Meta = provisional, Tournament Reliability ≈ 50. Modifiers: No Side Deck (-2); Unresolved passcode (-1). Final formula: 0.80*Structural + 0.20*TournamentReliability (Meta provisional) + ContextModifiers(-3)

Probability & combo summary

  • Opening a starter: P(≥1) ≈ 0.8 · 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 Fusion-starter coverage (Verified card text)
  • Broad interaction suite: Impermanence, Solemn, Droll, Ghost Belle, Feather Duster, Lightning Storm (Verified)
  • High-ATK Gem-Knight boss options in the Extra Deck (Verified)

Weaknesses

  • Low Shaddoll purity: only 6 exact-name copies and 5 of 9 core cards missing (Verified usage data)
  • No Side Deck, so no post-side plan (Verified)
  • Heavy reliance on Extra-Deck Fusion lines with specific materials (Inferred)

Critical choke points

  • Gem-Knight Fusion Spell and Shaddoll Fusion access to the Extra Deck
  • Searcher hits for the opening hand
Priority Remove Add Reason
1 Foolish Burial A Side-compatible or additional Gem-Knight starter Foolish Burial is Limited and adds a dead card in many openings; the choice is Inferred from text.
2 None A 15-card Side Deck Without a Side Deck the best-of-3 score is capped and the list cannot adapt to matchups.

Evidence & confidence

  • Verified: Main Deck 56, Extra Deck 14, Side 0, within OCG size rules; All restricted cards run within legal copy limits; Usage stat: Shaddoll core present 44.4% (4 of 9 cards)
  • Inferred: Opening-hand consistency ~0.80 for a searcher; Brick rate and interaction density estimates; Going-first and going-second power estimates
  • Provisional: Meta Power (no dated metagame sample); Matchup fit (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 record absent 1 passcode (20366274) in CardIDList could not be resolved to a card no win-rate telemetry: going-first, going-second, matchup and brick rates are Inferred or Unknown Meta Power is Provisional unless a dated metagame sample is supplied
Generated by deck-evaluation-skill/lean-v1· run 202610211417
 
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