Mulcharmy Deck #774251 — Yu-Gi-Oh! Master Duel

Deck — Deck Power Evaluation

Final Contextual Deck Power: 54/100 (±7 · Confidence: Medium)

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

Legality

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

Identity & game plan

• Win condition: Union monster chain into a Fusion boss (ABC-Dragon Buster, A-to-Z-Dragon Buster Cannon or XYZ-Hyper Dragon Cannon) built from LIGHT Machine Union monsters (Inferred from card text; no recorded boards); Underworld Goddess of the Closed World (Link-5, 3000 ATK) with negation text, reached through Link Summons (Inferred)
• Turn 1 (going first): Search a Union monster with Union Activation or Union Hangar, build the Union equip chain, and hold hand traps for the opponent's turn (Inferred)
• Turn 2 (going second): Use 8 hand traps (Ash Blossom, Effect Veiler, Droll and Lock Bird, Infinite Impermanence, Maxx C) to stop the opponent's first summon or search, then rebuild the Union board (Inferred)
• Recovery: Banish-based Union recursion: Union Activation and Union Scramble send or banish LIGHT Machine Union monsters back into play; Union Controller searches Union spells and traps (Inferred from partial text)
• After siding: No Side Deck (0 side cards), so there is no post-side plan; best-of-3 adaptation is unavailable as built

Why it scores here

The deck is scored as a system: a Union/LIGHT Machine engine (3 Union Activation, Union Hangar, Union Controller) that reaches Fusion and Link bosses, backed by 8 hand traps and negation text. Consistency is moderate: P(at least one searcher-text card in a 5-card opener) is about 0.69, but P(no archetype-core card in an opener) is about 0.49, so bricks are a real risk (Inferred). Its ceiling is high (3000 to 4000 ATK Fusion bosses and negation-capable Extra Deck cards), but no recorded boards exist, so combo conversion and median output come from card text only and are capped by low confidence. Interaction is the strongest area: 8 hand traps give P(at least one in a 6-card going-second hand) of about 0.76 (Inferred). Popularity did not earn points: usage stats confirm the list is real but do not measure strength. The score comes from consistency, interaction and ceiling together, not from averaging card scores. The Side Deck is empty, which caps adaptability.

Dimension scores

How the score was computed

Strategy profile: Combo. Structural ≈ 58.9, Going First ≈ 60, Going Second ≈ 62, Meta = provisional, Tournament Reliability ≈ 52. Modifiers: Off-engine dilution (-3); Banlist exposure at cap (-1). Final formula: 0.80*Structural + 0.20*TournamentReliability (Meta provisional) + ContextModifiers(-4) = 0.80*58.9 + 0.20*52 - 4 = 53.5, rounded to 54

Probability & combo summary

• Opening a starter: P(≥1) ≈ 0.69 · key two-card combo ≈ — · full-brick estimate ≈ 0.49 (all Inferred)
• Combo output: best PowerIndex —, median —, board-per-starter —
• Turn order: 0 going-first lines vs 0 going-second lines

Strengths

• Eight hand traps and three negation effects give strong going-second interaction
• Fusion and Link bosses reach 3000 to 4000 ATK
• Legal list with copy counts within limits
• Union recursion gives some resilience after disruption

Weaknesses

• No recorded boards, so combo conversion and median output are unverified
• Off-archetype dilution: only 4 Mulcharmy cards in a deck named Mulcharmy
• No Side Deck, so no post-side adaptation
• High decision load for a multi-step Union chain

Critical choke points

• Union Activation or Union Hangar is needed to start the Union engine; about 0.34 chance of a Union Activation in a 5-card opener
• Single-copy Union pieces (X-Head Cannon, Heavy Mech Support Armor, Union Driver) can brick a hand

Recommended changes

Evidence & confidence

• Verified: Legal in master-duel: 40 Main, 15 Extra, 0 Side within size rules; Restricted cards run within legal copies: Maxx C 1/1 Limited, Droll and Lock Bird 2/2 Semi-Limited, Super Polymerization 2/2 Semi-Limited; Card stats and card text excerpts from evidence; Archetype purity 7.3% and copy histogram
• Inferred: Opening-hand probabilities (0.34 Union Activation, 0.69 searcher text, 0.49 core-group proxy brick, 0.76 hand-trap going second); Engine structure and recovery plans from partial card text; Interaction density and board-breaking read from negation and removal text
• Provisional: Meta Power (null); Matchup and format fit (D13 at 50)
• Data gaps: No combos supplied: combo floor, median and ceiling are text-only inference No tournament link: archetype meta-share and match record are absent No win-rate telemetry (going-first, going-second, matchup, brick, starter or OTK rates) Meta Power is Provisional unless a dated metagame sample is supplied Usage stats say S:P Little Knight is missing from this deck (in_this_deck false), but the cards list includes it once in the Extra Deck; treated as present and flagged as an evidence inconsistency Incomplete card text for Union Activation and Union Controller (descriptions truncated)