Labrynth Deck #774339 — Yu-Gi-Oh! Master Duel

Deck — Deck Power Evaluation

Final Contextual Deck Power: 56/100 (±7 · Confidence: Medium)

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

Legality

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

Identity & game plan

• Win condition: Stall the opponent's board with Normal Trap negations, hand traps and removal, then close with Labrynth or Fusion/Xyz bosses such as Lady Labrynth of the Silver Castle (3000 ATK) and Lovely Labrynth.; Xyz and Fusion boss pressure from the Extra Deck (Cyber Saurus, Shark Drake, Dragonlark Pairen, Flame Ghost, Mavelus).
• Turn 1 (going first): Open with a Labrynth monster (Arianna, Chandraglier, Cooclock or Arias), set Normal Traps, and hold Infinite Impermanence, Dominus Impulse or Trap Holic to answer the first opposing play.
• Turn 2 (going second): Use hand traps (Maxx C, Songs of the Dominators, Dominus Impulse, Infinite Impermanence) to break the opponent's first board, then rebuild the field through Normal Trap recursion.
• Recovery: Recur Normal Traps from the GY through Lady Labrynth, Lovely Labrynth, Cooclock and Chandraglier, and use Trap Holic and Big Welcome Labrynth to rebuild the Trap set.
• After siding: No side deck (0 cards); Master Duel allows 0-15 side cards, so there is no post-side plan and adaptation is limited to main-deck construction.

Why it scores here

The deck reliably reaches a Labrynth monster in opening hands (about 78% chance of at least one of the 10 Labrynth monsters in a 5-card hand, Inferred), so the Normal Trap engine is usually live by turn 2. Its strongest attribute is interaction on the system: 11 negation-text cards, 4 hand traps and several removal traps give it breadth against a developing board, and the recursion through Lady Labrynth, Lovely Labrynth, Cooclock and Chandraglier lets it rebuild after a disruption. The score is held back by the trap-heavy composition (29 of 40 main cards are Traps and only 11 are monsters), which raises brick risk, and by the absence of combo evidence, so the combo ceiling and median are text-only estimates. Archetype popularity (the core group is present in nearly every list) confirms the deck is real and accessible but earned no points on its own, and card scores were not averaged into the deck score. Meta Power is provisional because no dated metagame sample was supplied.

Dimension scores

How the score was computed

Strategy profile: Control. Structural ≈ 58, Going First ≈ 60, Going Second ≈ 55, Meta = provisional, Tournament Reliability ≈ 52. Modifiers: trap-heavy brick exposure (-3); hand-trap and negation density (2); banlist exposure (0). Final formula: 0.80*Structural + 0.20*TournamentReliability (Meta provisional) + ContextModifiers (-1); 0.80*58 + 0.20*52 - 1 = 55.8, rounded to 56

Probability & combo summary

• Opening a starter: P(≥1) ≈ 0.78 · key two-card combo ≈ — · full-brick estimate ≈ 0.18 (all Inferred)
• Combo output: best PowerIndex —, median —, board-per-starter —
• Turn order: 0 going-first lines vs 0 going-second lines

Strengths

• Dense negation and hand-trap package (11 negation-text cards, 4 hand traps)
• Labrynth monster access is high for a 5-card hand (about 0.78)
• Recursion through Lady, Lovely, Cooclock and Chandraglier supports a grind
• Complete 40/15 legal list with core copies at full count

Weaknesses

• 29 of 40 main cards are Traps, so monster-light hands are common
• Combo evidence is absent, so output ceiling and median are unverified
• Low exact-name purity (27.3%) suggests the list relies on generic Normal Traps
• No side deck, so no post-side adaptation

Critical choke points

• Labrynth monster presence in the opening hand (about 0.22 chance of none among 10 Labrynth monsters)
• Single-copy Lady Labrynth and Lovely Labrynth as the main boss line

Recommended changes

Evidence & confidence

• Verified: Legal 40 main / 15 extra / 0 side in master-duel, Maxx C Limited at 1 copy; Card counts and copy histogram (29 Traps, 11 monsters, 6 Fusion, 9 Xyz); Usage statistics show 14 of 15 core cards present (93.3%)
• Inferred: Labrynth monster access about 0.78 in a 5-card hand (hypergeometric); Full-brick estimate about 0.18 (no monster in 5 cards); Going-second hand-trap access about 0.49 in a 6-card hand; Interaction depth from text roles (negation, removal, hand-trap)
• Provisional: Meta Power (no dated metagame sample); Matchup and format fit (D13); Side-deck adaptability (D12, no side cards)
• 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 (going-first/second, matchup, brick and starter rates) Meta Power is Provisional unless a dated metagame sample is supplied deck title is null in the export