Melodious Deck #757570 — Yu-Gi-Oh! OCG

Deck — Deck Power Evaluation

Final Contextual Deck Power: 35/100 (±8 · Confidence: Low)

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

Legality

Main 55 / Extra 15 / Side 0 — status under the rules at evaluation time: Illegal. 1 violation(s).

Identity & game plan

• Win condition: Fusion and Link Summon Melodious boss monsters (Bacha, Flowering Etoile, Schuberta, Bloom Harmonist) off a Melodious starter chain, then push damage with high-ATK Fusion bodies; Hand-trap and tech-driven interaction (Ash Blossom, Ghost Belle, Infinite Impermanence, Red Reboot, Maxx C) to stall the opponent until the Fusion or Link board lands
• Turn 1 (going first): Ostinato or 1st Movement Solo or Canon/Sonata from hand to reach a Melodious field, then Fusion Summon a Melodious boss using Extra Deck material; full conversion is not guaranteed on the opening hand
• Turn 2 (going second): Hold Ash Blossom, Droll & Lock Bird, Infinite Impermanence or Ghost Belle to answer the first opponent summon or search, then rebuild through Melodious Fusions from the Extra Deck
• Recovery: Recover Melodious monsters from the Graveyard with Soprano, Shopina and Couplet, and recycle Melodious Concerto from the Graveyard to reload the Fusion engine
• After siding: Not evaluable: the side deck is empty (0 cards), so there is no documented post-side plan

Why it scores here

The deck reliably reaches a Melodious board: P(at least one Melodious in a 5-card opening hand) is about 0.98 across 30 core copies, but the single 3-copy starter Ostinato is live in only about 25% of going-first openings (Inferred). Its ceiling is high, since Bacha, Flowering Etoile, Schuberta and Bloom Harmonist convert a starter into 2400-2800 ATK bodies and multi-card interaction (Inferred from card text; no recorded boards exist). Median output is much lower because 34 of 55 main copies sit outside the Melodious archetype, and the 17 hand traps and 23 tech slots are not engine pieces, which raises brick risk on a typical opening hand. Interaction density is the deck's strongest trait: the hand-trap and negation suite plus Heavy Storm and Crossout Designator gives it real answers on the going-second turn. The score is not derived from averaging card scores, and the popularity of the Melodious archetype did not earn points. Because the list is Illegal (Forbidden Triple Tactics Talent run twice) and has no side deck, the rubric caps it to a structural-only read.

Dimension scores

How the score was computed

Strategy profile: Combo. Structural ≈ 57, Going First ≈ 55, Going Second ≈ 60, Meta = provisional, Tournament Reliability ≈ 45. Modifiers: banlist_exposure (-6); engine_conflicts (-3). Final formula: Illegal list: structural-only read. Unconstrained 0.80*Structural(57) + 0.20*TournamentReliability(45) + ContextModifiers(-9) = 45.6, capped to 35 for illegality. Meta Power provisional (null).

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

• Near-guaranteed Melodious presence in opening hands (about 0.98 across 30 core copies)
• Dense interaction suite: 17 hand traps and 15 negation-text cards, with both going-first and going-second answers
• High-ATK Fusion and Link finishers (2400-3000 ATK) with Extra Deck coverage across Fusion and Link

Weaknesses

• Illegal as submitted: Forbidden Triple Tactics Talent run 2x
• Low exact-name purity (51.4%) and 34 off-archetype copies create brick and conflict risk
• Single-copy Ostinato starter is live only about 25% of going-first openings
• Empty side deck: no post-side plan and no adaptability
• No recorded boards, so the combo floor and median cannot be measured

Critical choke points

• Ostinato (3 copies) as the main Fusion starter with about 25% going-first access
• Extra Deck Fusion or Link material access on a 5-card hand

Recommended changes

Evidence & confidence

• Verified: Legality: Illegal; Triple Tactics Talent (Forbidden) 2 copies, 0 legal; main 55 and extra 15 within size rules; Archetype core: Melodious 36 exact-name copies; 51.4% exact-name purity; Side deck is empty (0 cards); No tournament link and no combo boards in the evidence
• Observed: Usage statistics: Melodious core cards (Ostinato, Refrain, Couplet, Infinite Impermanence) run at 100% or about 65% inclusion
• Inferred: P(Ostinato in 5) = 0.25 going first; core Melodious P(>=1) = 0.98; Interaction density from 17 hand traps and 15 negation-text cards; Fusion and Link boss ceilings from card text (no board data)
• Provisional: Matchup fit (D13) and Meta Power: no dated metagame sample
• 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 or starter rates) Side deck is empty, so post-side performance cannot be assessed Deck title is null