Labrynth Deck #762182 — Yu-Gi-Oh! Master Duel

Deck — Deck Power Evaluation

Final Contextual Deck Power: 60/100 (±6 · Confidence: Medium)

• Primary strategy: Midrange
• Secondary strategies: Toolbox, Stun
• Format: master-duel

Legality

Main 43 / Extra 15 / Side 0 — status: Legal.

Identity & game plan

• Win condition: Normal Trap chain engine (Trap Holic, Big Welcome Labrynth, Welcome Labrynth, Dominus Impulse) that fills the board with Labrynth monsters and converts into Link/Synchro boss monsters such as Red Dragon Archfiend, Chaos Angel, Psychic End Punisher and The Crimson King; Recursion from the GY through Labrynth Cooclock, Labrynth Stovie Torbie and Labrynth Chandraglier, feeding Link summons of Unchained and Dominus boss monsters
• Turn 1 (going first): Open a Labrynth starter (Arianna, Arias or Big Welcome Labrynth), set Normal Traps, use Welcome Labrynth or Trap Holic to reuse them, then Link or Synchro summon into a boss; protect the board with Lady and Lovely Labrynth while the Set card is on the field
• Turn 2 (going second): Use Dominus Impulse, Songs of the Dominators, Maxx C and Dimensional Barrier to answer the opponent's first summon or Synchro/Xyz/Link line, then convert the revealed Labrynth chain into a boss on the following turn
• Recovery: Recycle Normal Traps from the GY with Trap Holic and Lovely Labrynth, and rebuild the Labrynth monster count with Cooclock, Stovie Torbie and Chandraglier recursion
• After siding: No side deck is registered in the export, so there is no post-side plan to assess; the deck plays its main-deck plan only

Why it scores here

The deck reliably opens a functional plan: the archetype-core group is at least one copy in the opening 5 cards with probability 0.997, and the searcher group (10 copies) hits at 0.75. Its Normal Trap chain turns those openings into multiple boards, with Lady and Lovely Labrynth protecting the engine and Dominus Impulse, Songs of the Dominators, Maxx C and Dimensional Barrier providing interaction. It converts into strong Link and Synchro bosses from a 15-card Extra Deck with 13 distinct options, so the closing power is real. The score is capped by the lack of a side deck, the absence of recorded boards or win-rate data, and the high pilot burden of sequencing Normal Traps. The score comes from consistency, interaction and boss coverage on the system, not from Labrynth being a popular archetype and not from averaging card scores.

Dimension scores

How the score was computed

Strategy profile: Midrange. Structural ≈ 63, Going First ≈ 66, Going Second ≈ 62, Meta = provisional, Tournament Reliability ≈ 58. Modifiers: no side deck (-2). Final formula: 0.80*Structural + 0.20*TournamentReliability + ContextModifiers (Meta provisional)

Probability & combo summary

• Opening a starter: P(≥1) ≈ 1 · 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

• Archetype-core starter access is near certain in the opening hand
• Layered interaction: negations, Normal Trap protection and hand traps
• Extra Deck of 15 with 13 distinct boss options gives flexible closing power
• GY recursion reduces dead cards late in the game

Weaknesses

• No side deck, so there is no best-of-3 adaptation
• Heavy Normal Trap dependence makes hands with only traps and no Labrynth monster unreliable
• No recorded boards or win-rate data to confirm the ceiling
• High pilot burden for chain sequencing

Critical choke points

• A Labrynth monster or a Normal Trap set in the opening hand is required to start the engine
• Opponent interruption of the Normal Trap chain before a boss Link or Synchro summon

Recommended changes

Evidence & confidence

• Verified: Legal status with 43 main, 15 extra and 0 side cards, within the master-duel size rules; Maxx C is the only restricted card, Limited at 1 copy, and the deck runs 1; Core inclusion for Labrynth Cooclock, Lovely Labrynth and Big Welcome Labrynth at 84.6 percent usage; Extra Deck composition of 8 Link, 6 Synchro and 1 Fusion
• Observed: Usage statistics confirm the core Labrynth list is the archetype-standard build
• Inferred: Consistency estimates from the hypergeometric draw table; Interaction and closing quality from card text; Pilot complexity estimate from the number of Normal Trap decision points
• Provisional: Meta Power and matchup fit, since no dated metagame sample is supplied; Post-side plan, since no side deck is registered
• Data gaps: no combos supplied, so combo floor, median and ceiling are text-only inference no tournament link, so archetype meta-share and per-pilot match record are absent no win-rate telemetry exists in YGOVN for going-first, going-second, matchup or brick rates no side deck is registered, so D12 cannot be measured Meta Power is Provisional unless a dated metagame sample is supplied