Kewl Tune Deck #736201 — Yu-Gi-Oh! Master Duel

Deck — Deck Power Evaluation

Final Contextual Deck Power: 62/100 (±6 · Confidence: Medium)

• Primary strategy: Combo
• Secondary strategies: Synchro, Interaction, Going-Second
• Format: master-duel

Legality

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

Identity & game plan

• Win condition: Build a Synchro-based board with multiple interaction points (negation, removal) via repeated Tuner synergy to control the opponent's plays; Generate card advantage through hand-traps (Ash, Veiler, Ghost Belle) to disrupt opponent's setup while maintaining resources to push through
• Turn 1 (going first): Open with a Tuner starter (Cue, Mix, Reco), use Kewl Tune Synchro or field spell JJ Kewl Tune to search and extend into a Synchro board with 2-3 negation layers
• Turn 2 (going second): Hold hand-traps to interrupt opponent's board, then pivot into Synchro combos using GY Tuners to break and transition into offense
• Recovery: Leverage Synchro Tuner monsters that float on effect resolution; use banish interactions from GY Tuners to maintain resources through disruption
• After siding: Include Called by the Grave and Droll & Lock Bird to counter specific meta threats; adjust engine copies based on matchup density

Why it scores here

Kewl Tune is a Synchro-centric combo deck built around Tuner consistency and layered interaction. It opens with high probability (P≥1 core starter ≈0.998) and executes reliable Synchro boards with 2-3 negation effects, but lacks a strong floor when disrupted early and median combo output is moderate due to missing several archetype staples (Track Maker, B2B, Loudness War, Malong). The deck runs a cohesive hand-trap suite (12 copies) and float mechanics through Synchro Tuners, but depends heavily on GY recursion and has weak offensive closing unless the board survives. Going-second plans exist but require setup; the extra deck uses 14 of 15 slots efficiently for Synchro tooling. High archetype core inclusion (52% of statutory core present) and legal status confirm it is real and playable, but gaps in premium Synchro tools and unverified combo boards prevent a higher score.

Dimension scores

How the score was computed

Strategy profile: Combo. Structural ≈ 62, Going First ≈ 67, Going Second ≈ 60, Meta = provisional, Tournament Reliability ≈ 58. Modifiers: Missing archetype staples (-3); No side deck (-2); Legal, on-archetype (2). Final formula: 0.80·Structural + 0.20·TournamentReliability (Meta provisional)

Probability & combo summary

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

Strengths

• Extremely high starter consistency (P≥0.998) via 9-card archetype core; very low brick rate
• Modular Synchro engine allows independent lines with different Tuner starters (Cue, Mix, Reco, Clip)
• Strong hand-trap density (12 copies, 90% going-second access) synergizes with Tuner framework
• Synchro Tuner floats (RS, Remix, Crackle) generate card advantage and rebuild from GY disruption
• Efficient main deck packing (40 cards, 18 distinct) with no garnet overload; well-optimized for consistency
• Extra deck fully tooled (14/15 Synchro slots) with clear role assignments (negation, search, float)

Weaknesses

• Missing 52% of archetype's high-inclusion core cards (Track Maker, B2B, Loudness War, Malong, Remix); median output ceiling is capped vs meta benchmark
• Median combo power is moderate (~5-6 Synchro materials, 1-2 negations); no high-consistency OTK or infinite loop
• Weak offensive closing power; end-board ATK capped at 2500-2800 without piercing or burn effects
• Single choke-point at Normal Summon; disruption of the first Normal Summon significantly hampers turn-1 setup
• Limited grind game vs attrition strategies; deck leans on Synchro board rather than resource regeneration
• Empty side deck (0/15) in best-of-3 context removes post-side adaptation and reliability

Critical choke points

• First Normal Summon (Cue, Mix, Reco, Rotary): if negated or blocked, deck loses primary entry to combo engine
• Kewl Tune Synchro resolution: if search is negated, follow-up Synchro Summon becomes conditional and board shrinks
• GY recursion reliance: Tuner float effects depend on a live GY; Maxx C or ash on starters can leave few resources
• Kewl Tune Rotary ban/suspension risk: Limited status makes archetype vulnerable to banlist shifts affecting starting consistency

Recommended changes

Evidence & confidence

• Verified: Deck is Legal in Master Duel format (legality.status); 40 main, 15 extra, 0 side (per Master Duel size rules); All restricted cards are within copy limits; 18 distinct main-deck cards, 12 distinct extra-deck cards; 9 cards run at 3x (Ash, Cue, Blossom, Belle, Veiler, Harmonia, Synchro x3, Duelist Genesis); 4 cards run at 2x (JJ Kewl Tune, Mix, Reco, Droll); 5 cards run at 1x (Rotary, Maxx C, Called by the Grave, Clip, Synchro Overtake); Composition: 21 Tuner copies (52.5%), 13 Spell copies (32.5%), 6 Effect Monster copies (15%); Extra deck: 14 Synchro, 1 Fusion
• Observed: Archetype usage statistics show Kewl Tune Rotary, Cue, Reco, Mix, Synchro (100% inclusion); Ash, Veiler, Belle, Harmonia, Maxx C, Called by the Grave (98.5%-93.8% inclusion); Core card present rate: 52% (13 of 25 high-inclusion cards); missing Track Maker, B2B, Loudness War, Malong, Remix, Crackle, and others
• Inferred: P(≥1 archetype-core starter in opening hand 5) ≈ 0.998; full brick rate ≈ 0.002 (hypergeometric via 27-copy core group); Brick rate is low due to hand-trap density not being considered dead in reactive slots (Ash, Veiler, Belle in T1 going-first are live interaction); Best-line Synchro board features 2-3 negation points (RS/Remix/Crackle from GY Tuner banish effects); ceiling inferred from card text and Synchro tooling density; Median combo output is 5-6 Synchro material uses with 1-2 negations when opening mid-tier starters; median capped by missing Track Maker, B2B; Core engine (Cue, Mix, Reco, Rotary, Clip) generates 3+ independent lines via different Synchro targets and Normal Summon flexibility; Synchro Tuner floats (RS, Remix on Kewl Tune Mix/Reco materials) produce +1 card advantage and rebuild GY recursion after disruption; Going-second power: hand-trap suite + Fydraulis Harmonia field negation + Mulcharmy Fuwalos conditional draw allow medium board-breaking; not strong vs all meta decks; Offensive closing: end-board ATK capped at 2500-2800 (Harmonia); no piercing/burn; closing power is weak and depends on surviving T1 without interaction; Pilotability: Synchro combo chains are 4-6 steps; Tuner hand-trap synergy reduces complexity vs multi-engine hybrids; moderately accessible
• Provisional: Meta Power is null: no dated metagame sample supplied in tournament_context; archetype meta-share (Kewl Tune guide mentions 'strongest meta') is context only and does not substitute for a ranked matchup dataset; Tournament reliability: guides note strong ladder performance but no dated tournament results or per-pilot match records exist; Format fit is unknown: Master Duel environment and recent banlist not dated in the export
• Data gaps: No parseable combo boards supplied (combos_evidence.scored_combos = 0); combo floor, median, and ceiling are text-only inference from card effects No tournament link in deck export; archetype meta-share and per-pilot match record unavailable No win-rate telemetry (brick rate by game, starter rate by game, going-first/second performance, matchup-level results) exists in YGOVN; all consistency estimates are hypergeometric inference No dated metagame sample supplied; Meta Power remains Provisional Empty side deck (0/15); post-side deck composition and plan cannot be evaluated in best-of-3 context Master Duel banlist date not provided; banlist exposure assessment (Kewl Tune Rotary Limited) is noted but historical trajectory unknown