Synchron Deck #772538 — Yu-Gi-Oh! OCG

Deck — Deck Power Evaluation

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

• Primary strategy: Midrange
• Secondary strategies: Stun, Toolbox
• Format: ocg

Legality

Main 55 / Extra 15 / Side 0 — status under the rules at evaluation time: Illegal. 8 violation(s).

Identity & game plan

• Win condition: Synchro boss from the Extra Deck (Chaos Angel, Kewl Tune B2B, Zalen, TY-PHON) enabled by Kewl Tune Tuner chains; Kewl Tune Loudness War and Kewl Tune Remix as board-control and recurring Synchro bodies
• Turn 1 (going first): Normal Summon a Kewl Tune Tuner or Kewl Tune Cue, search a Kewl Tune card, then Synchro Summon a boss through the 2-card Tuner bootstrap
• Turn 2 (going second): Hold Ash Blossom, Infinite Impermanence, Ghost Belle and Effect Veiler to negate the opponent's first starter, then rebuild the Synchro line on the next turn
• Recovery: Recover through searchers (Kewl Tune Reco, Kewl Tune Mix, Duelist Genesis, Synchro Overtake) and recursion of Kewl Tune monsters from the GY
• After siding: Not evaluable: the deck runs no Side Deck, so no post-side plan exists in the evidence

Why it scores here

This deck is Illegal in OCG as built: eight cards exceed their copy limits, and two of them (Called by the Grave and Triple Tactics Talent) are Forbidden, so the score is capped and the evaluation is structural only. The structural read is a Midrange Synchron shell that can produce interaction-heavy starts, with 14 hand traps, 20 negation texts and 24 removal texts giving it good end-board and going-second interaction density. Its Synchro bosses are strong, but the Kewl Tune bootstrap is unreliable: only about 25 percent of hands contain any single 3-copy starter, and the list relies on up to 3 copies of cards that are limited to 1. The deck has no Side Deck and no combo or tournament data, so consistency, floor, and post-side scores are Inferred or Provisional and lower the confidence. The score does not come from Synchron's popularity or from averaging individual card scores.

Dimension scores

How the score was computed

Strategy profile: Midrange. Structural ≈ 51, Going First ≈ 52, Going Second ≈ 60, Meta = provisional, Tournament Reliability ≈ 42. Modifiers: banlist exposure (-12). Final formula: No reliable metagame: 0.80*Structural + 0.20*TournamentReliability = 0.80*51 + 0.20*42 = 49.2; modifiers -12 gives 37.2; Illegal-deck cap sets final to 30 (theoretical/structural only)

Probability & combo summary

• Opening a starter: P(≥1) ≈ 0.25 · 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

• Dense interaction: 14 hand traps plus negation and removal spells cover most opponent windows
• Strong Extra Deck bosses at Level 7-10 with multiple Synchro routes
• Searchers (16 text cards) and Tuner recursion give recovery after the first interruption

Weaknesses

• Illegal as built: copy limits on 8 cards and 2 Forbidden cards
• Low starter density: about 25 percent of hands contain any single 3-copy starter
• 23 level-0 spells/traps and 27 tech cards dilute the Synchro engine
• No Side Deck

Critical choke points

• Kewl Tune Tuner bootstrap: most lines need 2 Tuners on the field
• Single-copy legal limits on the Kewl Tune Cue, Rotary, Synchro and Reco package

Recommended changes

Evidence & confidence

• Verified: Illegal status: 8 copy-limit violations including 2 Forbidden cards; Main 55 and Extra 15 are within OCG size rules; Extra Deck contains 14 Synchro and 1 Xyz; Archetype core Mulcharmy Fuwalos and Droll & Lock Bird inclusion about 53 percent
• Inferred: Starter density about 25 percent per 3-copy card in 5-card hand; Hand-trap coverage about 84 percent in a 6-card going-second hand; Interaction density from card text; Structural score 51 on the Midrange profile
• Provisional: Meta and tournament reliability, lacking dated metagame data; Side deck adaptability (no Side Deck); Matchup coverage
• Data gaps: No combos supplied: floor, median and ceiling are text-only inference No tournament link: archetype meta-share and per-pilot records absent No win-rate telemetry for OCG Meta Power provisional without a dated metagame sample Side deck is empty, so post-side scoring is impossible