Labrynth Deck #761597 — Yu-Gi-Oh! Master Duel

Deck — Deck Power Evaluation

Final Contextual Deck Power: 58/100 (±8 · Confidence: Medium)

• Primary strategy: Control
• Secondary strategies: Combo, Link/Synchro
• Format: master-duel

Legality

Main 42 / Extra 15 / Side 0 — status: Legal.

Identity & game plan

• Win condition: Normal Trap engine (Labrynth) that repeatedly Special Summons, protects itself and then converts the board into Link/Synchro boss monsters such as Lady Labrynth (ATK 3000), Unchained Abomination (ATK 3000) and Chaos Angel (ATK 3500).; Unchained link recursion and Synchro/Link follow-up after the Normal Trap engine has cleared the opponent's board.
• Turn 1 (going first): T1: Special Summon an engine monster (Arianna, Ariane, Stovie or Arias), set Welcome Labrynth or Big Welcome Labrynth, and keep a Normal Trap or Maxx C up for interaction.
• Turn 2 (going second): Use Maxx C and set Traps (Songs of the Dominators, Dominus Impulse, Trap Holic) to answer the opponent's first summon or effect, then rebuild through Normal Trap recursion from the Graveyard.
• Recovery: Recur Normal Traps and Labrynth monsters from the Graveyard (Big Welcome Labrynth banish, Labrynth Chandraglier and Labrynth Stovie Torbie GY effects, Trap Holic) and rebuild the Link/Synchro board from the remaining hand.
• After siding: Not applicable: Master Duel has no side deck in this export (side_count 0), so there is no post-side plan to score.

Why it scores here

The deck scores as a system, not as an average of its cards: a 42-card Labrynth Normal Trap engine with 24 Traps and 18 monsters, a full 15-card Extra Deck, and about 17 interaction Traps that answer summons, effects and boards. Consistency is moderate: a 3-copy starter has about a 32 percent chance of appearing in an opening 5-card hand, and the searcher text group about 72 percent, so the engine reliably turns on by T2 only when the hand has both a monster and a set Trap. Interaction and protection (Lady Labrynth and Lovely Labrynth limit targeting and responses) carry the score, and the Extra Deck of nine Links, five Synchros and one Xyz gives real closing power. The score is held back by the lack of a combo dataset (combos_evidence is empty), so floor and median output are inferred from text only, and by the absence of a side deck and matchup data. The 84 percent usage inclusion of the core cards confirms the list is the standard build, but popularity did not earn points.

Dimension scores

How the score was computed

Strategy profile: Control. Structural ≈ 61, Going First ≈ 64, Going Second ≈ 59, Meta = provisional, Tournament Reliability ≈ 55. Modifiers: Normal Trap set-turn tempo choke (-2). Final formula: 0.80*Structural + 0.20*TournamentReliability + Modifiers (Meta provisional): 0.80*60.55 + 0.20*55 - 2 = 57.8, rounded to 58

Probability & combo summary

• Opening a starter: P(≥1) ≈ 0.32 · 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 interaction suite (Dominus Impulse, Songs of the Dominators, Trap Holic, Dominus Spark, Transaction Rollback, Dimensional Barrier, Destructive Daruma, Maxx C)
• Protection from Lady Labrynth and Lovely Labrynth
• Full Extra Deck with boss options at ATK 2900 to 3500
• Recursion from the Graveyard gives multiple rebuild routes

Weaknesses

• Only 18 monsters in the Main Deck, so the engine is starter-thin
• Normal Trap set-turn dependency slows the board
• Only one hand trap (Maxx C) and no floodgate
• No side deck and no combo or matchup data to verify the ceiling

Critical choke points

• Opening hand needs a monster and a set Normal Trap together
• Labrynth starter density (3-copy starters about 32 percent at hand 5)

Recommended changes

Evidence & confidence

• Verified: Legal status: 42 Main, 15 Extra, 0 Side within Master Duel size rules; Maxx C is Limited with 1 copy run and 1 legal copy; Composition counts and archetype purity; Usage inclusion rates (84.6 percent for the Labrynth core); One guide snippet describes the list as trap-heavy control (human intent)
• Observed: Core card inclusion rates from usage_statistics
• Inferred: Starter and searcher probabilities; Brick and set-turn risk; Interaction quality and protection; Pilotability and error tolerance; Structural scores for D1-D12 and D14
• Provisional: D13 matchup and format fit (no tournament link or meta sample); Meta Power (null); Side adaptability (no side deck in format)
• 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 are absent No win-rate telemetry: going-first, going-second, matchup and brick rates are Inferred or unknown Meta Power is provisional without a dated metagame sample usage_statistics marks Chaos Angel, Muckraker From the Underworld and Super Starslayer TY-PHON as not in this deck, but cards[] lists all three in the Extra Deck; core_present_pct (83.3) is likely undercounted, and the cards[] list was used Master Duel export has no side deck, so D12 has no performance basis