Labrynth Deck #632548 — Yu-Gi-Oh! Master Duel

42 Main, 15 Extra, incl. Arianna the Labrynth Servant x3, Ash Blossom & Joyous Spring x3, Treasures of the Kings x3.

Created by: YGO Mod (20517634)

Created On: 01/16/2026

 
 


Official AI Deck Power Analysis
ToolboxConfidence: LowEvaluated Oct 31, 2026
30± 10/ 100
Power Score
Structural 53
Reliability 45
Going First 55
Going Second 58

Deck — Deck Power Evaluation

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

Overall score Value
Structural Deck Power 52.9
Going First 55
Going Second 58
Meta Power provisional
Tournament Reliability 45
  • Primary strategy: Toolbox
  • Secondary strategies: Stun, Midrange
  • Format: master-duel

Legality

Main 42 / Extra 15 / Side 0 — status under the rules at evaluation time: Illegal. 3 violation(s).

Identity & game plan

  • Win condition: Trap-setup Labrynth/Temple of the Kings lines that reach Link, Synchro, Xyz and Fusion boards (Anubis the Last Judge, Divine Serpent Apophis, Chaos Angel, Lady Labrynth) and convert with 3000+ ATK monsters; Hand-trap and negation interaction (Ash Blossom, Infinite Impermanence, Dominus Impulse, Maxx C) to stall the opponent's board while the Extra Deck comes online
  • Turn 1 (going first): Open with a Labrynth starter (Arianna, Welcome Labrynth or Big Welcome Labrynth) that searches or Special Summons a second Labrynth piece, then set Normal Traps to enable Lady or Lovely Labrynth as the board breaker
  • Turn 2 (going second): Hold hand traps (Ash Blossom, Infinite Impermanence, Maxx C, Dimensional Barrier) to answer the opponent's first summon, then build a Link board off the surviving starter
  • Recovery: Recover Normal Traps from the GY through Lady Labrynth, Lovely Labrynth and Welcome Labrynth, and refill the Trap-based engine from the Deck
  • After siding: Not evaluable: the list has no Side Deck (0 cards), so there is no post-side plan to assess

Why it scores here

The deck reliably opens a Labrynth starter: the 21 archetype-core copies give about a 0.98 chance of at least one in an opening hand of 5 (Inferred). Its interaction density is high, with 16 negation-text cards, 14 removal-text cards and 9 hand traps, so the board answers are layered rather than single-threaded. Conversion is the weak link: no recorded boards exist, the 24 Trap cards depend on setup and sequencing, and only 10 of 42 main-deck copies share the exact Labrynth name, so the engine is spread across several sub-archetypes. The score is built from consistency, interaction and Extra Deck coverage on the system, not from averaging card scores or from the archetype's popularity. Because the list is Illegal (Dimension Shifter is Forbidden, and Maxx C and Treasures of the Kings exceed their copy limits), the final score is capped at 30 and the evaluation is theoretical and structural only.

Dimension scores

# Dimension Score Evidence
D1 Engine Accessibility & Consistency 62 P(at least one archetype-core card in opening 5) ≈ 0.98 across 21 core copies; starter density is high but conditional on Trap setup (Inferred)
D2 Opening-Hand Quality & Brick Management 48 24 Trap cards and 9 hand traps leave many hands with a dead or conditional trap; no brick measurement exists (Inferred)
D3 Combo Conversion & Ceiling 55 No parseable recorded boards; ceiling is inferred from Extra Deck boss text such as Anubis and Chaos Angel (Inferred)
D4 Combo Floor & Median Output 42 No recorded boards, so the median output cannot be measured; a trap-dependent start is expected to undershoot the ceiling (Inferred)
D5 Interruption Resilience & Route Redundancy 58 Several independent interruption routes exist (hand traps, Trap Holic, Welcome Labrynth recursion, Lady Labrynth) but only one shared engine card (Inferred)
D6 Resource Economy, Recovery & Grind 52 Recursion comes from Welcome Labrynth, Big Welcome Labrynth and Trap Holic plus one Pot of Extravagance, but the Extra Deck spend is high (Inferred)
D7 End-Board & Interaction Quality 66 16 negation-text and 14 removal-text cards with 9 hand traps and Maxx C gives broad, layered end-board interaction (Verified text, Inferred quality)
D8 Going-Second & Board-Breaking Power 62 Hand traps are present in about 0.79 of going-second 6-card hands; Dimensional Barrier and Destructive Daruma add board breaking (Inferred)
D9 Offensive Pressure & Closing Power 50 Closing relies on 3000+ ATK Extra Deck monsters, but no end-board or damage data exists to confirm conversion (Inferred)
D10 Main Deck Efficiency & Flexibility 40 42 main slots hold 22 distinct cards, 24 Traps and 17.5% exact-name purity; three copy-limit violations and a Forbidden card lower efficiency (Verified composition)
D11 Extra Deck Efficiency & Coverage 62 Extra Deck runs 10 Link, 2 Synchro, 2 Xyz and 1 Fusion, with Link Spider and Cross-Sheep giving cheap access to the Link board (Verified composition, Inferred use)
D12 Side Deck Adaptability 10 No Side Deck is present, so post-side adaptability cannot be assessed (Verified: side count 0)
D13 Matchup Coverage & Format Fit 45 No dated meta sample or tournament link exists; format fit is Provisional
D14 Pilotability & Error Tolerance 42 Trap sequencing, Lady and Lovely Labrynth conditions and Fiend-tribute interactions create many decision points (Inferred)

How the score was computed

Strategy profile: Toolbox. Structural ≈ 52.9, Going First ≈ 55, Going Second ≈ 58, Meta = provisional, Tournament Reliability ≈ 45. Modifiers: banlist exposure (-8); engine conflicts (-3). Final formula: Illegal cap: Structural = Toolbox weights with D13 dropped and renormalised (meta-neutral) = 52.9; uncapped 0.80*52.9 + 0.20*45 + modifiers(-11) = 40.3, capped to 30 because the deck is Illegal (theoretical/structural-only); Meta Power is null/provisional

Probability & combo summary

  • Opening a starter: P(≥1) ≈ 0.98 · 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

  • Layered interaction: 16 negation-text, 14 removal-text and 9 hand-trap cards
  • High at-least-one odds for the archetype-core starter group
  • Extra Deck covers Link, Synchro, Xyz and Fusion with cheap Link access

Weaknesses

  • Illegal list: a Forbidden card and two copy-limit violations
  • Trap-heavy, setup-dependent engine with a low exact-name purity of 17.5%
  • No Side Deck, so no post-side plan
  • No recorded boards, so the conversion ceiling and median are unmeasured

Critical choke points

  • Normal Trap setup for Lady and Lovely Labrynth and the Trap-based engine
  • Dependence on the Extra Deck for closing power
  • The Forbidden Dimension Shifter slot, which must be removed before the deck can be evaluated normally
Priority Remove Add Reason
1 Dimension Shifter (1 copy, Forbidden) A legal main-deck replacement The card cannot be run in Master Duel, so the list cannot be Legal while it is present
2 1 copy of Treasures of the Kings (run 3, limit 2) A legal main-deck replacement Brings the copy count to the Semi-Limited limit
3 1 copy of Maxx "C" (run 2, limit 1) Lady Labrynth of the Silver Castle (legal limit 3, currently 1) or another legal core card Brings the Limited copy count to 1 and fills the three freed slots so the Main Deck stays at 40 or more

Evidence & confidence

  • Verified: Illegal status: Dimension Shifter Forbidden with 1 copy; Maxx C Limited with 2 copies against 1; Treasures of the Kings Semi-Limited with 3 copies against 2; Main 42, Extra 15, Side 0, within the Master Duel size rules; Card text excerpts for Labrynth starters, hand traps and Extra Deck bosses
  • Inferred: At least one archetype-core starter in opening 5 ≈ 0.98; Hand-trap presence in going-second hands ≈ 0.79; Interaction quality and layering from card text; Consistency, brick and Extra Deck coverage estimates
  • Provisional: Meta Power and matchup fit (no dated metagame sample); Format fit for the current Master Duel environment
  • Data gaps: Illegal list: a Forbidden card and two copy-limit violations prevent a normal Final Contextual score No recorded combo boards, so the combo ceiling, median and power distribution are text-only inference No tournament link: archetype meta-share and per-pilot records are absent No Side Deck, so post-side adaptability is unmeasured Usage-statistics inconsistency: Super Starslayer TY-PHON is shown as in this deck=false although the Extra Deck list includes it (1 copy) Deck title is null No win-rate telemetry exists, so going-first and going-second splits are Inferred

More Master Duel Info

Labrynth

Labrynth Breakdown

 
 

 

 

 

 

 

 
 

 

 
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