Melodious Deck #763532 — Yu-Gi-Oh! OCG

Deck — Deck Power Evaluation

Final Contextual Deck Power: 40/100 (±10 · Confidence: Low)

• Primary strategy: Combo
• Secondary strategies: Toolbox
• Format: ocg

Legality

Main 55 / Extra 15 / Side 0 — status: Illegal. 2 violation(s).

Identity & game plan

• Win condition: Melodious Fusion and Link boards (Bacha, Schuberta, Flowering Etoile, Bloom Harmonist) pressuring through Fairy-type ATK and Melodious Fusion beats; Hip Hoshiningen and Sky Striker Ace - Azalea as link finishers when Melodious engine is interrupted
• Turn 1 (going first): Open Ostinato or 1st Movement Solo, special summon a Melodious monster (Canon, Refrain, Sonata or Couplet), then fuse or link into a Melodious Fusion or Link board
• Turn 2 (going second): Hand traps (Ash Blossom, Ghost Belle, Ghost Ogre, Infinite Impermanence, Droll & Lock Bird, Maxx C) to answer the opponent's first summon, then continue the engine off Melodious searchers
• Recovery: Soprano and Couplet search or recur Melodious monsters from the GY, and Melodious Concerto and Shopina rebuild the hand
• After siding: No side deck present, so no post-side plan is possible

Why it scores here

The deck opens its engine reasonably often: the 26-copy Melodious core gives a 96.6% chance of at least one core card in the opening five, and the 3-copy starters (Ostinato, 1st Movement Solo, Canon, Refrain, Sonata, Couplet) each reach about 25% in the opening hand (Inferred). Interaction density is high, with 17 hand traps and 15 negation-text cards, which gives it real going-second answers. Ceiling and median output could not be measured because the deck supplied no recorded boards, so the combo scores are text-only inference. The score does not come from Melodious being a popular archetype, nor from averaging card scores. It is capped low because the list is illegal: Triple Tactics Talent is Forbidden and runs two copies, so this is a theoretical, structural-only read. It also has no side deck and no tournament or meta data.

Dimension scores

How the score was computed

Strategy profile: Combo 100% for structural weights; Toolbox noted as secondary, not blended. Structural ≈ 53.6, Going First ≈ 50, Going Second ≈ 55, Meta = provisional, Tournament Reliability ≈ 45. Modifiers: Illegal list cap (-12); Dependence on Extra-Deck Link/Fusion bosses (0). Final formula: 0.80*Structural + 0.20*TournamentReliability (Meta provisional) = 51.9, then Illegal legality cap applied as modifier -12 to give 40 (theoretical, structural-only)

Probability & combo summary

• Opening a starter: P(≥1) ≈ 0.25 · 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 heavily present (26 Melodious copies, core group 96.6% to open at least one)
• Layered interaction: 17 hand traps and 15 negation-text cards
• Two Fusion/Link engine routes plus Melodious recursion from the GY

Weaknesses

• Illegal list: Triple Tactics Talent (Forbidden) runs 2 copies
• Only 51.4% exact-name archetype purity; 34 off-archetype copies dilute the engine
• No side deck, so no post-side adaptation
• No recorded combos, so ceiling and median are unmeasured

Critical choke points

• Melodious monster on the field for the Fusion/Link engine to start; a hand with no Melodious starter does not function
• Triple Tactics Talent must be removed before the deck is playable

Recommended changes

Evidence & confidence

• Verified: Legality: Triple Tactics Talent is Forbidden with 2 copies (illegal); Main 55, Extra 15, Side 0 (sizes legal); Archetype purity 51.4% (36 of 70 exact-name copies); Core group opening probability 0.9659
• Inferred: Starter hypergeometric odds (0.2529 per 3-copy card in hand5); Hand-trap and negation coverage read from card text; Going-first and going-second estimates from text, not measured boards
• Provisional: Meta Power (no dated metagame sample); Matchup fit (no tournament link)
• 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 (going-first/second, matchup, brick/starter rates) no side deck; post-side plan cannot be evaluated Meta Power is Provisional unless a dated metagame sample is supplied