Kewl Tune Deck #751758 — Yu-Gi-Oh! TCG

Deck — Deck Power Evaluation

Final Contextual Deck Power: 30/100 (±8 · Confidence: Low)

• Primary strategy: Combo
• Secondary strategies: Midrange, Toolbox
• Format: tcg

Legality

Main 55 / Extra 15 / Side 0 — status: Illegal. 8 violation(s).

Identity & game plan

• Win condition: Synchro summons into Kewl Tune Tuner boss monsters (Kewl Tune B2B, Kewl Tune Loudness War, Black Rose Dragon, Zalen) and K9 Xyz / Synchro bosses, chained through Tuner-based searches; K9-17 Ripper and Vallon Xyz bosses plus Super Starslayer TY-PHON as a late-game closer
• Turn 1 (going first): Normal Summon a Kewl Tune Tuner (Cue/Mix/Reco), search another Kewl Tune card, then Synchro into a Kewl Tune boss; Ash Blossom and Effect Veiler protect the first Synchro
• Turn 2 (going second): Open with a hand trap (Ash Blossom, Ghost Ogre & Snow Rabbit, Ghost Belle, Effect Veiler, Droll & Lock Bird) on the opponent's first summon or search, then rebuild the Tuner chain
• Recovery: Kewl Tune searchers (Mix, Reco, Synchro, Playlist) and Duelist Genesis / Synchro Overtake refill the hand; Kewl Tune Mix and Reco can recur from the GY
• After siding: Not assessable: the deck has zero side-deck cards, so there is no post-side plan in the evidence

Why it scores here

The score comes from the deck as a system, not from averaging its cards. The Kewl Tune Tuner package is dense: about 0.97 of hands with 5 cards contain at least one archetype core card, so the engine usually comes online early, and the Tuner searchers keep it refilling. Interaction is layered, with about 0.84 probability of at least one hand trap when going second, plus Lightning Storm, Harpie's Feather Duster and Solemn Judgment. The deck does not earn points for popularity: the archetype's usage stats confirm the list is real, but the list is only 38.6% exact-name Kewl Tune and carries 43 off-archetype copies, which lowers main-deck efficiency. The score is capped because the list is illegal: eight cards exceed their copy limits and one Forbidden card (Kewl Tune Rotary) is run three times. No combos, no side deck, and no tournament or win-rate data exist, so the floor, median and ceiling are only text-based inference.

Dimension scores

How the score was computed

Strategy profile: Combo. Structural ≈ 55, Going First ≈ 53, Going Second ≈ 58, Meta = provisional, Tournament Reliability ≈ 40. Modifiers: banlist exposure (-6); engine conflicts and over-limit build (-6); illegal list cap (0). Final formula: Structural 55 -> 0.80*55 + 0.20*40 = 52 (Meta provisional), minus modifiers (-12) = 40, then capped at 30 because the list is Illegal (theoretical/structural-only)

Probability & combo summary

• Opening a starter: P(≥1) ≈ 0.97 · 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

• Archetype core is near-certain to appear in the opening hand
• Layered hand-trap and negation suite for going second
• Multiple Tuner searchers and recursion keep the engine refilling
• Several strong, varied Extra Deck bosses

Weaknesses

• Illegal list: eight copy-limit violations and a Forbidden card run
• Low exact-archetype purity (38.6%) with many off-archetype tech and staple cards
• No side deck
• No combo, win-rate or tournament evidence to validate the ceiling

Critical choke points

• Kewl Tune Tuner count in hand: a Tuner-light opening hand cannot start the Synchro chain
• Single-copy Kewl Tune Playlist and Synchro Overtake are the only non-Tuner searchers for some hands
• Synchro summon is the one conversion route, so a clean negate on the first Synchro stalls the turn

Recommended changes

Evidence & confidence

• Verified: Legality: 55 Main, 15 Extra, 8 copy-limit violations, Forbidden cards run (Called by the Grave, Kewl Tune Rotary); Card text and stats for all listed cards; Archetype usage: Kewl Tune core cards at 100% inclusion; Composition: 26 Tuners, 14 hand traps, 16 searchers, 38.6% exact-name purity
• Inferred: Consistency estimates from the hypergeometric draw table; Going-second hand-trap coverage (~0.84); Ceiling and interaction reads from card text; Structural profile scores on all 14 dimensions
• Provisional: Meta Power (no dated metagame sample); D13 matchup fit (no tournament or meta-share data)
• Data gaps: No combos supplied, so floor, median and ceiling are text-only inference No tournament link, so archetype meta-share and pilot match record are absent No win-rate telemetry (going-first/second, matchup, brick and starter rates) Side deck is empty, so post-side adaptability cannot be scored Meta Power is provisional without a dated metagame sample