Shaddoll Deck #773377 — Yu-Gi-Oh! OCG

57 Main, 15 Extra, incl. Archfiend of Gilfer - Flame Attack x3, Dracotail Faimena x3, King of the Swamp x3. Created Oct 21, 2026 by YGO Mod.

Deck Shaddoll OCG

Created by: YGO Mod (20517634)

Created On: 10/21/2026

 
 


Official AI Deck Power Analysis
MidrangeConfidence: MediumEvaluated Oct 21, 2026
48± 6/ 100
Power Score
Structural 59
Reliability 47
Going First 62
Going Second 55

Deck — Deck Power Evaluation

Final Contextual Deck Power: 48/100 (±6 · Confidence: Medium)

Overall score Value
Structural Deck Power 59
Going First 62
Going Second 55
Meta Power provisional
Tournament Reliability 47
  • Primary strategy: Midrange
  • Secondary strategies: Toolbox, Fusion
  • Format: ocg

Legality

Main 57 / Extra 15 / Side 0 — status: Legal.

Identity & game plan

  • Win condition: Fusion Summon a high-ATK boss (Chimera 3300, Grapha 3200, Arthalion 3000, Rulkallos 3000) from Extra, supported by Shaddoll flip removal and Shaddoll Schism to clear the opposing board.; Shaddoll Winda and El Shaddoll Apkallone as lock and negate pieces that keep the opponent off Extra Deck summons.
  • Turn 1 (going first): Open a Fusion starter (Shaddoll Fusion, Polymerization, Lev Shaddoll Fusion, Ketu or Rahu Dracotail) or a searcher, Fusion Summon a boss, and hold Maxx C and Dragon's Mind as backup interaction.
  • Turn 2 (going second): Use Maxx C, Tearlaments Havnis or Scheiren as hand responses to the opponent's summons or effects, then convert with a Shaddoll flip removal monster and a Fusion boss.
  • Recovery: Recover through Shaddoll Hedgehog and Apkallone GY effects, Dracotail Urgula placing Dracotail cards from the GY back to the Deck, and Fusion materials recycled through Shaddoll Schism.
  • After siding: Not available: the deck runs no Side Deck (side_count 0), so there is no post-side plan. Best-of-three play is structurally unprepared.

Why it scores here

The deck reliably opens a Fusion starter on about half of openings by a hypergeometric estimate (Inferred), backed by three Shaddoll Fusion and a Polymerization-class follow-up set, and it has a decent searcher density (15 searcher-text copies, P at least one in 5 cards about 0.80). Its interaction is the strongest part: Shaddoll Squamata, Shaddoll Dragon, Helshaddoll Hollow, Tohushaddoll Grysta, Shaddoll Schism, and Apkallone give layered removal and negation on the field. Closing power is high because the Extra Deck is loaded with 2700 to 3300 ATK bosses. The score is not an average of card scores and does not reward popularity: Shaddoll usage confirms the list is real, but 25 percent exact-name purity, Dracotail, Tearlaments, Mulcharmy, Archfiend, Predaplant, Dark World and Despia pieces, and 13 Limited cards pull the system's consistency down. The deck also has no Side Deck, which caps its tournament reliability.

Dimension scores

# Dimension Score Evidence
D1 Engine Accessibility & Consistency 62 P(at least one Fusion-enabling card in 5) about 0.54 across 8 copies; 12 core-archetype copies P(at least one in 5) 0.71 (Inferred).
D2 Opening-Hand Quality & Brick Management 52 25 singleton slots and a 57-card main with several situational cards (Heavy Storm, That Grass Looks Greener, Foolish Burial) raise brick and dead-card risk (Inferred).
D3 Combo Conversion & Ceiling 70 No parseable boards; ceiling is text-only inference from Fusion chaining via Dracotail monsters and Shaddoll Schism (Inferred).
D4 Combo Floor & Median Output 52 No recorded boards, so median output cannot be measured; off-archetype pieces make the typical board less coherent (Inferred, Provisional).
D5 Interruption Resilience & Route Redundancy 60 Hand-summoned Tearlaments, Maxx C and two Dragon's Mind give redundant responses, but there is no recorded disruption data (Inferred).
D6 Resource Economy, Recovery & Grind 60 GY recursion via Hedgehog, Apkallone, Urgula and Schism is real, but Meshahrail's 800 LP cost and Limited-card dependence limit grind (Inferred).
D7 End-Board & Interaction Quality 78 Squamata, Dragon, Hollow, Grysta, Apkallone, Winda and Rulkallos give layered end-board interaction (Verified card text, Inferred quality).
D8 Going-Second & Board-Breaking Power 66 Going-second relies on one Maxx C and Tearlaments hand responses; no dedicated Hand Trap beyond these, so pressure on an established board is decent but not deep (Inferred).
D9 Offensive Pressure & Closing Power 80 Boss ATK ranges from 2700 to 3300 (Verified stats) give strong closing power, but Fusion boss access is unreliable (Inferred).
D10 Main Deck Efficiency & Flexibility 45 57 main slots across 37 distinct names and about 25 percent exact-name purity, so compactness is poor (Verified composition).
D11 Extra Deck Efficiency & Coverage 50 14 Fusion plus 1 Synchro spread over about 6 archetype families, with only two 2-copy bosses; coverage is broad but not coherent (Verified composition, Inferred).
D12 Side Deck Adaptability 12 Side Deck is empty (side_count 0), so no post-side adaptability exists (Verified legality).
D13 Matchup Coverage & Format Fit 48 No tournament link or dated meta sample; archetype share unavailable, so matchup fit is Provisional.
D14 Pilotability & Error Tolerance 40 Several Fusion lines with multiple material choices and Extra-Deck restrictions raise decision load and error risk (Inferred).

How the score was computed

Strategy profile: Midrange primary, Toolbox secondary; Midrange weights used for Structural. Structural ≈ 59, Going First ≈ 62, Going Second ≈ 55, Meta = provisional, Tournament Reliability ≈ 47. Modifiers: No Side Deck (-3); Engine conflicts across archetypes (-3); Banlist exposure (-2). Final formula: 0.80*Structural + 0.20*TournamentReliability (Meta provisional): 0.80*58.6 + 0.20*47 = 56.3, then context modifiers -8 = 48.3, rounded to 48

Probability & combo summary

  • Opening a starter: P(≥1) ≈ 0.54 · key two-card combo ≈ — · full-brick estimate ≈ 0.46 (all Inferred)
  • Combo output: best PowerIndex —, median —, board-per-starter —
  • Turn order: 0 going-first lines vs 0 going-second lines

Strengths

  • Layered on-field interaction: Squamata, Dragon, Hollow, Grysta, Schism, Apkallone
  • High boss ATK in the Extra Deck (2700 to 3300) for closing
  • Searcher density (15 copies) supports finding Fusion starters

Weaknesses

  • No Side Deck, so no post-side plan
  • Exact-name purity 25 percent; engine spread across 6+ archetype families
  • Heavy Limited-card dependence (13 Limited, 2 Semi-Limited)
  • Dead-in-hand risk from situational cards such as Heavy Storm and That Grass Looks Greener

Critical choke points

  • Fusion-enabling starter access (8 copies) gates almost every line
  • Shaddoll Fusion x3 is the main reliable entry point
  • Maxx C is the only true hand trap for going second
Priority Remove Add Reason
1 None A 15-card Side Deck (Shaddoll and Fusion answers plus targeted interaction) Side count is 0, so the deck has no adaptation for best-of-three; this is the largest structural gap.
2 That Grass Looks Greener A second Fusion-enabling starter or a Shaddoll-engine searcher The card is situational and does not start or continue a line, adding brick risk.
3 One off-archetype Fusion boss (Predaplant Dragostapelia or Eyes Restrict) A Shaddoll boss or a flexible Fusion starter Reduces the spread of archetype families and improves engine coherence.

Evidence & confidence

  • Verified: Legal status, 57 main, 15 extra, 0 side (size rules 40-60 / 0-15 satisfied); Copy limits: Limited and Semi-Limited copies within legal caps; Extra Deck is 14 Fusion and 1 Synchro, copy counts as listed; Card text and stats from excerpts
  • Inferred: Fusion-enabling hypergeometric estimate (about 0.54 going first); Engine consistency and brick risk; Interaction quality from card text; Boss closing power from ATK stats
  • Provisional: Meta power (no dated metagame sample); Matchup fit (no tournament data)
  • 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 (going-first, going-second, matchup, brick rates) exists Meta Power is Provisional unless a dated metagame sample is supplied Side Deck is empty, so post-side behaviour cannot be evaluated

More OCG Info

Shaddoll

Shaddoll Breakdown

 
 

 

 

 

 

 

 
 

 

 
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