Labrynth Deck #773542 — Yu-Gi-Oh! Master Duel

Deck — Deck Power Evaluation

Final Contextual Deck Power: 56/100 (±6 · Confidence: Medium)

• Primary strategy: Midrange
• Secondary strategies: Control, Combo
• Format: master-duel

Legality

Main 40 / Extra 15 / Side 0 — status: Legal.

Identity & game plan

• Win condition: Synchro, Link and Xyz boss monsters (Lady Labrynth 3000 ATK, Lovely Labrynth 2900 ATK, Chaos Angel 3500 ATK x2, Psychic End Punisher 3500 ATK) converting a board stabilised by Normal Trap and negation interaction; Labrynth recursion from the Graveyard (Stovie Torbie, Chandraglier, Welcome Labrynth) rebuilding a Labrynth board after the first disruption
• Turn 1 (going first): Open a Labrynth starter (Welcome Labrynth, Big Welcome Labrynth or Arianna) to Special Summon or search another Labrynth, then set Normal Traps for the next turn while the Extra Deck boss is built
• Turn 2 (going second): Use Dominus Impulse, Dominus Spark and Songs of the Dominators to answer the opponent's first summon or monster effect, then rebuild the board from the Graveyard through Labrynth recursion
• Recovery: Return Labrynth monsters from the Graveyard by discarding or sending them through Stovie Torbie and Chandraglier, reuse Normal Traps from the Graveyard through Labrynth Cooclock and Lovely Labrynth, and search Labrynth cards with Arianna and Chandraglier
• After siding: Not applicable: Master Duel has no side deck in this format (side 0/15 and no best-of-3 side plan), so the post-side plan is absent and D12 is scored low as a gap

Why it scores here

The deck reliably opens a Labrynth engine: the archetype core is present in the Main Deck (25 copies, about 99.5% chance of at least one in a 5-card opening hand, Inferred), and nine searcher-text cards give about a 74% chance of one searcher in hand. It converts that engine into pressure through a Synchro, Link and Xyz Extra Deck with several 2900 to 3500 ATK bosses, but there is no recorded board evidence, so the ceiling and median are text-based only. Interaction is dense for a Trap deck (8 negation-text and 21 removal-text cards, with Dominus Impulse and Dimensional Barrier), which supports the endboard score. Brick risk and Normal Trap timing lower the score, because many hands hold traps that need a summon or monster effect to activate. The score comes from consistency, recursion and interaction measured on the system; it does not come from Labrynth's popularity (no meta-share data) and does not average the individual card scores.

Dimension scores

How the score was computed

Strategy profile: Midrange. Structural ≈ 57.8, Going First ≈ 60, Going Second ≈ 58, Meta = provisional, Tournament Reliability ≈ 52. Modifiers: Normal Trap timing dependence (-3); Multiple interaction and recursion routes (2); Banlist exposure (0). Final formula: 0.80*Structural + 0.20*TournamentReliability (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 is present at very high opening-hand probability
• Dense negation and removal text across a trap-based interaction suite
• Two Extra Deck bosses at 3000+ ATK with Labrynth Graveyard recursion

Weaknesses

• 23 Normal Traps create brick and timing risk
• No recorded boards, so the combo floor and median are unknown
• No side deck in this format, so no post-side adaptation
• Low exact-name purity (27.3%) with mixed sub-archetypes

Critical choke points

• Normal Trap activation windows that depend on opponent monster effects or summons
• Chandraglier and Stovie Torbie setups that depend on Labrynth Spell/Trap availability in hand or Deck

Recommended changes

Evidence & confidence

• Verified: Legal in Master Duel: 40 Main, 15 Extra, 0 Side; Maxx C Limited at 1 copy; Card text and stats for all listed cards; Archetype usage stats: 19 rows, core present 80%
• Inferred: Opening-hand consistency from hypergeometric estimates; Interaction density from card text; Recursion and route redundancy from text
• Provisional: Meta power and matchup fit (no dated metagame sample)
• 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 no win-rate telemetry for going-first, going-second, matchup or brick rates Meta Power is Provisional unless a dated metagame sample is supplied deck title is null in the export