Kewl Tune Deck #756859 — Yu-Gi-Oh! Master Duel

Deck — Deck Power Evaluation

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

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

Legality

Main 40 / Extra 15 / Side 0 — status under the rules at evaluation time: Illegal. 2 violation(s).

Identity & game plan

• Win condition: Synchro Summon Kewl Tune Synchro-line Extra Deck monsters (Kewl Tune RS, Remix, Crackle, Track Maker, Loudness War) through Tuner-chaining, then press with the Synchro board; Ecclesia and the Dark Dragon and Albion the Branded Dragon as off-archetype Extra Deck beaters
• Turn 1 (going first): Turn 1 Normal Summon a Kewl Tune Tuner, use JJ Kewl Tune or Kewl Tune Synchro to search a Kewl Tune card, then Synchro Summon from Kewl Tune Mix / Reco / Cue plus a second Tuner; hold hand traps for the opponent's first Main Phase
• Turn 2 (going second): Open with Ash Blossom, Ghost Belle, Effect Veiler, Infinite Impermanence, and Droll & Lock Bird as hand traps against the opponent's first summon or search, then rebuild a Tuner-to-Synchro line on the following turn
• Recovery: Recover through Kewl Tune Mix / Reco / Synchro and Duelist Genesis searches plus Ghost Belle and Ash Blossom recursion from the GY
• After siding: No Side Deck is registered, so no post-side plan can be assessed; the list has zero sideboard slots

Why it scores here

This list is Illegal on two counts: Kewl Tune Cue is run at 2 copies against a limit of 1, and Synchro Overtake is a Forbidden card run at 1 copy. Under the rubric the deck is therefore capped and labelled theoretical/structural-only. The structural read is still informative. The Kewl Tune core is dense enough (25 archetype-core copies, P(at least one in a 5-card opening hand) ≈ 0.995) that the engine is almost always reachable, and the 17 hand-trap copies (P ≥ 1 in a 6-card going-second hand ≈ 0.97) give the deck real interaction on the opponent's turn. Those are the strengths the score rests on. The weaknesses are that the Extra Deck runs only 4 of the 13 core Extra Deck Kewl Tune monsters (Wind Pegasus, Loudness War, Malong, Remix, Crackle, Track Maker, B2B and others are missing), that there are no combo boards to measure a ceiling or median, and that the list has no Side Deck. The score was not built by averaging card scores, and popularity of the archetype did not add points; the 0-to-30 band reflects the legality cap.

Dimension scores

How the score was computed

Strategy profile: Midrange primary, Stun secondary (not blended numerically; Midrange weights used for Structural). Structural ≈ 60, Going First ≈ 55, Going Second ≈ 68, Meta = provisional, Tournament Reliability ≈ 50. Modifiers: illegal_list_cap (-28); no_side_deck (-2). Final formula: Illegal cap: Final Contextual Deck Power capped at 30 (theoretical/structural-only). Uncapped structural estimate = 0.80*60 + 0.20*50 = 58, not reported as the score

Probability & combo summary

• Opening a starter: P(≥1) ≈ 1 · 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 Kewl Tune engine is almost always reachable in the opening hand (~99.5% for at least one core card)
• 17 hand traps give strong going-second interaction (~97% at least one in a six-card hand)
• Multiple searchers and GY recursion support recovery across turns

Weaknesses

• Illegal list: Kewl Tune Cue over copy limit and Forbidden Synchro Overtake
• Only 38.2% exact-name archetype purity; 34 off-archetype copies dilute the engine
• Missing several core Kewl Tune Extra Deck monsters, reducing Extra Deck coverage and closing power
• No Side Deck, so no post-side plan

Critical choke points

• Synchro Overtake is Forbidden and must be removed before the list can be legal
• Kewl Tune Cue must drop to one copy to be legal

Recommended changes

Evidence & confidence

• Verified: Illegal status: Kewl Tune Cue 2 copies over Limited limit of 1; Synchro Overtake Forbidden, run 1 copy; Main 40 / Extra 15 / Side 0 counts; Side Deck is empty; Exact-name archetype purity 38.2% (21 of 55 copies)
• Inferred: Core engine accessibility ~0.995 hypergeometric estimate; Hand-trap going-second coverage ~0.97; Interaction density from negation / removal text; Going-second stronger than going-first from hand-trap density
• Provisional: Meta Power (null) and matchup fit (D13) without a dated metagame sample; Median and floor (D4) without recorded boards
• Data gaps: no combos supplied — combo floor/median/ceiling is text-only inference no tournament link — archetype meta-share and per-pilot match record absent no win-rate telemetry exists in YGOVN — going-first/second, matchup, and brick rates are Inferred or Unknown Meta Power is Provisional unless a dated metagame sample is supplied No Side Deck registered; post-side plan cannot be assessed