Kewl Tune Deck #730494 — Yu-Gi-Oh! Master Duel

Kewl Tune — Deck Power Evaluation

Final Contextual Deck Power: 65/100 (±5 · Confidence: Medium)

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

Legality

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

Identity & game plan

• Win condition: Establish a multi-layered Synchro board with protective effects and negation, then grind out opponent through hand-trap interaction and recursive Tuner lines; Draw into combo pieces via Mulcharmy reactive engines and accrue card advantage while hand traps control opponent summons
• Turn 1 (going first): Summon Tuner starter (Kewl Tune Cue preferred), chain Synchro summons via Tuner hand-as-material replacement, build 1-2 Synchro bosses (Loudness War for Tuner protection, B2B for double attack, Track Maker for searcher recursion), hold hand traps for disruption
• Turn 2 (going second): Mulligan for at least one hand trap; if opening hand trap exists, discard to negate opponent turn-one play, then activate Mulcharmy during opponent summons for card draw, then establish own Synchro board in following turn
• Recovery: Use Mix/Reco to search Tuners from GY, leverage Synchro Tuners (Track Maker, B2B, Remix) to loop into additional Synchro summons, activate Loudness War GY banish effect to recur Tuner effects, chain Synchro Spells for redundancy
• After siding: Master Duel best-of-one format; no side deck adaptation available

Why it scores here

Kewl Tune is a well-constructed Synchro combo deck with very high opening consistency (99.88% probability of core engine piece in opening hand) and a durable, multi-layered first-turn board featuring Loudness War for Tuner protection, negation-heavy interaction across 15 hand traps plus Zalen and spell-negations, and recursive Synchro lines via Mix/Reco searchers. The median turn-one output is solid but not explosive—typically 1-2 Synchro bodies plus held interactions—held back slightly by the high hand-trap density (37.5% of deck) that occasionally creates reactive rather than proactive openings. Going-second, the deck is not a dedicated blind-second archetype and struggles against established boards; it relies on opening hand traps rather than active removal. Master Duel's best-of-one format also limits tournament flexibility since there is no side deck. The deck's popularity and archetype meta-share noted in guides did NOT contribute to this score; the evaluation reflects the system's actual consistency, board durability, and interaction mechanics, never averaging card scores or treating frequency as power.

Dimension scores

How the score was computed

Strategy profile: Combo. Structural ≈ 73, Going First ≈ 71, Going Second ≈ 62, Meta = provisional, Tournament Reliability ≈ 62. Modifiers: Hand-trap density variance (-2); Master Duel best-of-one constraint (-3); Going-second weakness (-1). Final formula: 0.80·Structural + 0.20·TournamentReliability + Modifiers (Meta provisional)

Probability & combo summary

• Opening a starter: P(≥1) ≈ 1 · key two-card combo ≈ — · full-brick estimate ≈ 0.03 (all Inferred)
• Combo output: best PowerIndex —, median —, board-per-starter —
• Turn order: 0 going-first lines vs 0 going-second lines

Strengths

• Very high opening consistency (99.88% probability of core engine piece in opening hand)
• Well-layered, durable first-turn board with Loudness War Tuner protection plus multi-layered negation (hand traps + Zalen negate + spells)
• Complete Extra Deck coverage (14 Synchro including Tuner-Synchro loops, Zalen negation, recursion, removal, plus XYZ fallback)
• Tight main-deck construction with 40 cards, no filler, every slot serving clear role
• Recursive Synchro lines via Mix/Reco searchers enable continued board setup after disruption
• Broad hand-trap package (15 total) provides interaction against diverse format strategies
• Multiple independent starter types reduce single-point-of-failure dependency

Weaknesses

• High hand-trap density (37.5% of main deck) creates occasional reactive or all-trap opening hands
• Not a dedicated going-second deck; limited active board-breaking against established boards (only 2x Called by the Grave / Crossout as removal)
• Median turn-one output is solid but not explosive (typically 1-2 Synchro, not 3+)
• Tuner-summon pipeline creates a choke point: focused Tuner negation (Effect Veiler, repeated Ash blocks) can grind deck down over time
• Resource generation is conditional on opponent actions (Mulcharmy draws only when opponent summons, not proactive advantage)
• Master Duel best-of-one format provides no side-deck adaptation for unfavorable matchups
• Going-first resource economy is weak (Mulcharmy passive unused T1, hand traps are 1-for-1 trades)

Critical choke points

• Tuner-summon negation (Effect Veiler live, repeated Ash / Ghost Belle activations) can lock entire Synchro pipeline
• Graveyard disruption (light-imprisoning mirror, dimensional fissure, deck banish effects) blocks Mix/Reco searches and Synchro Tuner recursion
• Extra Deck destruction or limited access to Loudness War/B2B/Track Maker targets significantly reduces board layering
• Against multi-negate boards with Tuner negation present, going-second is extremely difficult (limited board-breaking tools)
• Best-of-one format prevents side-deck counters to graveyard-centric or anti-Synchro strategies

Recommended changes

Evidence & confidence

• Verified: Legality status: Legal (all restricted cards within Master Duel copy limits, deck size 40/15 valid, no size warnings); Card text resolutions (all 30 distinct cards in evidence resolved with descriptions); Extra Deck configuration (15 cards total: 2+2+2+2+2+1+1+1+1+1, all Synchro/XYZ accounted); Banlist compliance (Kewl Tune Rotary Limited 1 copies run, Synchro Overtake Limited 1 copies run, etc.); Copy-limit verification (no card exceeds its legal copies threshold for its banlist status)
• Observed: Hypergeometric draw probability calculations (P ≥1 starter in 5 = 0.9988; P ≥1 hand trap in 6 = 0.9539); Archetype-core inclusion frequency (14/23 core cards present; 60.9% core inclusion rate); Guide references describing Kewl Tune as meta-dominant archetype in Vietnamese community
• Inferred: Brick rate estimate (~2-3% full brick, derived from hand-trap density + starter-type distribution); Combo ceiling and floor (no board data; inferred from card text: ceiling 2-3 Synchro with Tuner loops, floor 1-2 Synchro + interaction hold); Turn-one board composition (1-2 Loudness War/B2B/Track Maker + held hand traps, inferred from card synergy and Extra Deck selection); Going-first vs going-second performance split (inferred from high hand-trap density and limited dedicated removal); Interaction density and negation layers (15 hand traps + 3 spell negations + Zalen negate + Loudness War GY effect); Synchro sequencing and Tuner-hand-as-material mechanics (inferred from card text on Mix/Reco/Loudness War); Pilotability complexity (inferred from Tuner mechanics, Synchro chaining, GY management, material-replacement rules); Resource economy evaluation (Mulcharmy conditional draw typed as reactive, not proactive advantage generation)
• Provisional: Meta Power: null (no dated metagame sample supplied; guides reference strength but no quantified archetype meta-share data); Matchup coverage and format fit (D13: Provisional without tournament link or dated meta sample); Competitive standing vs other Synchro archetypes (no tournament results or dated meta data available); Post-side adaptability (Master Duel best-of-one, no side deck; post-side evaluation not applicable)
• Data gaps: No parseable combo boards (combo data.total combos = 0): combo floor, median, and ceiling are text-only inferences, not empirical board statistics No tournament link: archetype meta-share statistics and per-pilot match records are absent; Meta Power remains Provisional No dated metagame sample: cannot compute matchup-specific win rates or competitive format fit with confidence No win-rate telemetry in YGOVN: going-first/second win rates, matchup-specific outcomes, brick/starter frequency rates are unknown Master Duel best-of-one format: side-deck composition and post-game adaptation strategies cannot be evaluated usage statistics table shows some Extra Deck cards (Loudness War, Remix, RS, B2B) as 'in this deck: false,' but card evidence lists them in zone 'extra' — indicates possible stale cache or data sync issue in usage table