Melodious Deck #773250 — Yu-Gi-Oh! OCG

Deck — Deck Power Evaluation

Final Contextual Deck Power: 30/100 (±10 · Confidence: Low)

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

Legality

Main 56 / Extra 15 / Side 0 — status under the rules at evaluation time: Illegal. 2 violation(s).

Identity & game plan

• Win condition: Fusion Summon Melodious Maestra/Diva boss monsters (Bloom Prima, Flowering Etoile, Bacha, Luce) off a Pendulum/Ostinato starter chain (Inferred from card text; no recorded boards); Link Summon chain via Melodious Link monsters and Ostinato-based Fusion pressure (Inferred)
• Turn 1 (going first): Open a live starter (Refrain, Couplet, Sonata, Soprano, Ostinato) and build toward a Fusion boss while the hand traps stay available
• Turn 2 (going second): Use the 6-card hand's hand traps (Ash, Herald, D.D. Crow, Droll) to break the opponent's first engine, then follow with a Melodious starter (Inferred)
• Recovery: Recover Melodious monsters from the GY through Shopina, Soprano and Couplet effects and rebuild the Fusion line (Inferred from text)
• After siding: Not available: the deck runs no Side Deck, so there is no post-side plan

Why it scores here

The deck reliably opens a Melodious starter: the archetype core (23 copies) gives P(at least one in a 5-card opening hand) of about 0.94, and the 13 searchers add a second route. Its interaction layer is dense, with 16 hand traps and 19 negation-text cards, which lifts going-second board breaking, and the Fusion bosses (Bloom Prima, Flowering Etoile, Luce) give real closing power. Recovery is supported by GY-recursion text, but there are no recorded boards, so the combo ceiling and median are text-only inferences. The deck is Illegal (Ash Blossom at 3 copies vs 2 allowed, Herald of Orange Light at 3 vs 1), so the score is capped and reported as theoretical and structural only. The score was not produced by averaging card scores and does not use archetype popularity; no meta share was supplied, so Meta Power is null.

Dimension scores

How the score was computed

Strategy profile: Combo. Structural ≈ 60, Going First ≈ 58, Going Second ≈ 66, Meta = provisional, Tournament Reliability ≈ 52. Modifiers: copy-limit violation (illegal cap) (-4); banlist exposure (-3). Final formula: Illegal cap: 0.80*60 + 0.20*52 + modifiers(-7) = 52 before cap; capped to 30 as theoretical/structural-only (no normal Final Contextual score)

Probability & combo summary

• Opening a starter: P(≥1) ≈ 0.94 · key two-card combo ≈ — · full-brick estimate ≈ 0.06 (all Inferred)
• Combo output: best PowerIndex —, median —, board-per-starter —
• Turn order: 0 going-first lines vs 0 going-second lines

Strengths

• Archetype core (23 copies) is very likely to be present in the opening hand
• Dense interaction: 16 hand traps and 19 negation-text cards
• Fusion bosses with real stat ceilings (Luce 3500, TY-PHON 2900)
• Recursion text from the GY supports rebuilding

Weaknesses

• Illegal list: Ash Blossom and Herald of Orange Light exceed copy limits
• No side deck, so no post-side adaptation
• Only 43.7% exact-name Melodious purity; 40 off-archetype copies
• No recorded boards, so the combo floor and median are unknown

Critical choke points

• The Melodious starter chain (Refrain, Couplet, Sonata, Soprano, Ostinato) is the single route to the Fusion line
• Legal copy counts must be corrected before any normal score can be given

Recommended changes

Evidence & confidence

• Verified: Main deck 56, Extra 15, Side 0 counts; Ash Blossom 3 vs 2 and Herald of Orange Light 3 vs 1 copy violations; Limited/Semi-Limited statuses; Extra Deck breakdown: 10 Fusion, 4 Link, 1 Xyz; Copy histogram sums to 56 cards across 29 distinct
• Observed: Usage: 11 of 17 archetype core cards present (64.7%); core Refrain, Ostinato, Couplet at 100% to 61.5% inclusion
• Inferred: Opening-hand starter probability 0.94 (core group proxy); Brick rate and hand-trap availability estimates; Combo ceiling and interaction reads from card text
• Provisional: Meta Power (null, no dated meta sample); Matchup and format fit (no tournament context)
• 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/second, matchup or brick rate Meta Power is provisional unless a dated metagame sample is supplied deck title is null and no side deck is present