Kewl Tune Deck #762176 — Yu-Gi-Oh! Master Duel

Deck — Deck Power Evaluation

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

• Primary strategy: Midrange
• Secondary strategies: Stun, Tempo
• Format: master-duel

Legality

Main 40 / Extra 15 / Side 0 — status: Illegal. 3 violation(s).

Identity & game plan

• Win condition: Synchro pressure from Kewl Tune Synchro boards (Kewl Tune B2B, Kewl Tune Loudness War, Kewl Tune RS) built through Tuner-chained Synchro Summons; Ecclesia and the Dark Dragon / Albion the Branded Dragon as extra-deck follow-up when the Tuner engine is stopped
• Turn 1 (going first): Open a Tuner (Kewl Tune Mix / Reco / Rotary) with a searcher, Normal Summon a Tuner, search or Special Summon a second Tuner, and Synchro Summon a Kewl Tune Synchro boss
• Turn 2 (going second): Hold Ash Blossom, Ghost Belle, Effect Veiler, or Infinite Impermanence to stop the opponent's first play, then rebuild the Kewl Tune Synchro line from the hand
• Recovery: Recursion through Kewl Tune Synchro and Kewl Tune Mix/Reco from Deck or GY, and Kewl Tune Track Maker/Crackle banish-and-recycle effects
• After siding: Not evaluable: the deck runs no Side Deck, so there is no post-side plan

Why it scores here

The deck reliably opens its engine: 24 copies of the archetype core, a 0.92 chance of at least one searcher in the opening five, and a 0.94 chance of at least one hand trap when going second, which together make the Tuner-to-Synchro line very accessible (Inferred from hypergeometric estimates). Its Tuner density (23 Tuner monsters in a 40-card main) gives redundancy for interruption but also raises the risk of hands with several Tuners and no Synchro Summon route, which holds the brick score down. Interaction is dense (14 hand traps plus removal text) and supports the going-second plan, but there are no recorded boards, so the combo ceiling and median are text-only reads (Inferred). Popularity and guide praise were not credited, and card scores were not averaged. The deck is Illegal as submitted (a Forbidden Synchro Overtake and two over-limit cards), so the Final score is capped at 40 and the evaluation is structural-only.

Dimension scores

How the score was computed

Strategy profile: Midrange. Structural ≈ 59, Going First ≈ 60, Going Second ≈ 62, Meta = provisional, Tournament Reliability ≈ 55. Modifiers: banlist_exposure (-8); no_side_deck (-4); legality_cap (-6). Final formula: 0.80*Structural + 0.20*TournamentReliability (Meta provisional) = 58.2, plus modifiers -12 = 46, then capped at 40 because the list is Illegal (legality cap)

Probability & combo summary

• Opening a starter: P(≥1) ≈ 0.92 · 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

• Core archetype is compact in intent: 24 Kewl Tune copies with a high-probability searcher
• Dense going-second interaction: 14 hand traps and multiple negation texts
• Multiple Synchro bosses with board-control or second-attack text

Weaknesses

• Illegal list: a Forbidden card and two over-limit cards
• No side deck and no post-side plan
• Tuner-heavy hands risk dead or non-Synchro openings
• Low exact-archetype purity (36.4%) with many off-archetype Tuners

Critical choke points

• Access to a Kewl Tune Synchro boss depends on a Tuner-pair bootstrap
• Removing Synchro Overtake and the over-limit copies will change the searcher and Tuner ratios

Recommended changes

Evidence & confidence

• Verified: Main 40, Extra 15, Side 0 is within the master-duel size rules; Synchro Overtake is Forbidden; The Fallen & The Virtuous and Kewl Tune Cue are over copy limit; Copy histogram and composition counts match the decklist; Exact-archetype purity 36.4%; 14 Synchro and 1 Fusion in the Extra Deck
• Inferred: Going-first searcher access ~0.92 and going-second hand-trap access ~0.94 (hypergeometric); Kewl Tune Synchro boss chain as the main Synchro engine (card text); Interaction density from hand-trap and negation text
• Provisional: Meta Power is null; no dated metagame sample; Archetype competitiveness is not credited, because tournament_context is unavailable
• Data gaps: No combos or recorded boards: combo floor, median and ceiling are text-only No tournament link: meta-share and per-pilot match record absent No win-rate telemetry (going-first/second, matchup, brick rate) Meta Power is provisional without a dated metagame sample No side deck, so no post-side evaluation