Synchron Deck #750951 — Yu-Gi-Oh! TCG
55 Main, 15 Extra, incl. Mulcharmy Fuwalos x3, Mulcharmy Purulia x3, Ash Blossom & Joyous Spring x3. Created Sep 11, 2026 by YGO Mod.
Created by: YGO Mod (20517634)
Created On: 09/11/2026
Main Deck (55)
- Bystial Magnamhut x1
- Droll & Lock Bird x2
- Mulcharmy Fuwalos x3
- Mulcharmy Purulia x3
- Ash Blossom & Joyous Spring x3
- Effect Veiler x3
- Fydraulis Harmonia x3
- Ghost Belle & Haunted Mansion x3
- Ghost Ogre & Snow Rabbit x3
- Kewl Tune Clip x1
- Kewl Tune Cue x3
- Kewl Tune Mix x2
- Kewl Tune Reco x3
- Kewl Tune Rotary x3
- Called by the Grave x1
- Duelist Genesis x1
- Harpie's Feather Duster x1
- JJ "Kewl Tune" x1
- Kewl Tune Synchro x3
- Lightning Storm x2
- Pot of Prosperity x1
- Pot of Sloth x2
- Synchro Overtake x1
- Anti-Spell Fragrance x1
- Infinite Impermanence x3
- Kewl Tune Playlist x1
- Mannadium Reframing x1
Extra Deck (15)
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Deck — Deck Power Evaluation
Final Contextual Deck Power: 30/100 (±10 · Confidence: Low)
| Overall score | Value |
|---|---|
| Structural Deck Power | 56 |
| Going First | 52 |
| Going Second | 60 |
| Meta Power | provisional |
| Tournament Reliability | 40 |
- Primary strategy: Toolbox
- Secondary strategies: Combo, Stun
- Format: tcg
Legality
Main 55 / Extra 15 / Side 0 — status under the rules at evaluation time: Illegal. 8 violation(s).
Identity & game plan
- Win condition: Synchro Summon high-ATK extra-deck monsters (Chaos Angel 3500, Kewl Tune B2B 3200, Zalen 2800) off Kewl Tune tuner chains; Hand-trap-supported board presence with Mulcharmy draw engine and Kewl Tune Mix/Track Maker follow-ups
- Turn 1 (going first): Normal Summon a Kewl Tune or Tuner, search or summon a second Tuner, then Synchro Summon into a Kewl Tune or boss monster (evidence-free, Inferred)
- Turn 2 (going second): Hold hand traps (Ash Blossom, Ghost Ogre, Ghost Belle, Effect Veiler, Infinite Impermanence) to stop the opponent's starter, then rebuild through Kewl Tune search and Synchro Summon (Inferred)
- Recovery: Recover through Mulcharmy draw effects, Pot of Prosperity and Pot of Sloth, and Kewl Tune recursion from GY (Inferred)
- After siding: Not possible to evaluate: the deck runs zero side-deck cards in a format that expects a side
Why it scores here
This list is illegal in TCG as built: eight copy-limit violations, including three Forbidden cards (Kewl Tune Rotary, Called by the Grave, Anti-Spell Fragrance), so the score is capped and reported as structural-only. The structural read is 56. The deck has a dense set of Kewl Tune tuners and Synchro extra-deck monsters that gives it real redundancy: the archetype core group has about 81% chance of at least one card in a 5-card opening hand, but any single 3-copy starter is only about 25%. Interaction is the strongest area, with 17 hand traps, 14 negation texts and 25 removal texts, so the deck can answer a board, though it relies on going-second. Its closing power comes from high-ATK Synchro monsters (3200 to 3500 ATK). The score does not come from the Synchron name, which is declared but has no Synchron cards in the list, and it does not come from averaging card scores.
Dimension scores
| # | Dimension | Score | Evidence |
|---|---|---|---|
| D1 | Engine Accessibility & Consistency | 58 | P(at least one 3-copy starter in 5) = 0.25; archetype core group P = 0.81; 27 Tuners in Main Deck (Inferred) |
| D2 | Opening-Hand Quality & Brick Management | 45 | 27 Tuners, 19 level-0 non-monsters and 17 hand traps raise dead-draw risk on a 5-card hand (Inferred) |
| D3 | Combo Conversion & Ceiling | 52 | No parseable boards; ceiling read from Kewl Tune Mix, Track Maker and B2B card text only (Inferred) |
| D4 | Combo Floor & Median Output | 42 | No combo evidence; median output unknown, floor below ceiling because starters are spread across many archetypes (Inferred) |
| D5 | Interruption Resilience & Route Redundancy | 62 | Redundant tuner routes plus 17 hand traps and Kewl Tune recursion give a second line after one disruption (Inferred) |
| D6 | Resource Economy, Recovery & Grind | 60 | Searchers (16) and Pot of Prosperity, Pot of Sloth and Mulcharmy draw effects give card economy (Inferred from card text) |
| D7 | End-Board & Interaction Quality | 72 | 14 negation texts, 25 removal texts, Harpie's Feather Duster and Lightning Storm; quality is Inferred from text |
| D8 | Going-Second & Board-Breaking Power | 66 | Going-second hand-trap coverage P(at least one in 6 cards) = 0.90; Chaos Angel and B2B board pressure (Inferred) |
| D9 | Offensive Pressure & Closing Power | 68 | Synchro ATKs verified: Chaos Angel 3500, Kewl Tune B2B 3200, Zalen 2800; closing depends on Synchro resolution (Verified/Inferred) |
| D10 | Main Deck Efficiency & Flexibility | 48 | 55 Main cards inside the 40 to 60 size rule, but 3 copies of Kewl Tune Rotary and other banned or over-limit cards make it inefficient (Verified/Inferred) |
| D11 | Extra Deck Efficiency & Coverage | 72 | 15 Synchro Extra Deck cards, 11 distinct, with several high-ATK bosses and tuner options (Verified) |
| D12 | Side Deck Adaptability | 10 | Zero Side Deck cards; no post-side plan exists (Verified) |
| D13 | Matchup Coverage & Format Fit | 50 | No tournament link and no dated meta; matchup fit is Provisional |
| D14 | Pilotability & Error Tolerance | 40 | Several multi-step Kewl Tune chains and many decision points; no pilot-level evidence (Inferred) |
How the score was computed
Strategy profile: Toolbox. Structural ≈ 56, Going First ≈ 52, Going Second ≈ 60, Meta = provisional, Tournament Reliability ≈ 40. Modifiers: banlist exposure (-10); no side deck (-2). Final formula: Illegal list: structural-only evaluation. Structural 56 with Toolbox weights; Final is capped at 30 (banlist and copy-limit exposure modifier -10, no side deck -2). Normal 0.80*Structural + 0.20*TournamentReliability not applied.
Probability & combo summary
- Opening a starter: P(≥1) ≈ 0.81 · 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 hand-trap suite (17) with strong going-second coverage (about 0.90 in 6 cards)
- Extra Deck covers high-ATK Synchro bosses (Chaos Angel 3500, B2B 3200, Zalen 2800)
- Multiple redundant Kewl Tune tuner routes
Weaknesses
- Illegal list: three Forbidden and several over-limit cards
- Declared Synchron archetype with zero Synchron core cards; 0% exact-name purity
- Zero side deck, so no best-of-3 plan
- No combo, tournament or guide evidence to verify the line
Critical choke points
- Dependence on Kewl Tune tuners as the engine; each Kewl Tune card is limited to 1 copy
- Dead-card risk from 19 level-0 spells and traps and 17 hand traps
- Forbidden cards removed would break the engine's redundancy
Recommended changes
| Priority | Remove | Add | Reason |
|---|---|---|---|
| 1 | Kewl Tune Rotary (3), Called by the Grave (1), Anti-Spell Fragrance (1) | Legal copies of Kewl Tune staples, or non-banned tuners | Required for the list to be legal in TCG; none of these cards can be run as built |
| 2 | Excess copies of Ash Blossom, Kewl Tune Cue, Kewl Tune Synchro, Kewl Tune Reco, Droll & Lock Bird | One legal copy each, with spare slots for Synchron core cards | Brings copy counts to the Limited and Semi-Limited limits and restores the declared archetype |
| 3 | A few level-0 spells/traps (e.g., Pot of Sloth, Mannadium Reframing) | Side deck of 10 to 15 cards | Creates a post-side plan for best-of-3 |
Evidence & confidence
- Verified: Eight copy-limit violations and three Forbidden cards (legality); Main 55 and Extra 15 are within size rules; Synchro ATKs (Chaos Angel 3500, B2B 3200, Zalen 2800); Archetype core coverage 31.6% of tracked core cards present; Zero side deck
- Inferred: Hypergeometric starter probabilities (0.25 single 3-copy, 0.81 archetype core group, 0.90 hand-trap group); Interaction quality from card text; Going-second and recovery plans
- Provisional: Meta Power (null) and matchup fit (D13); Tournament reliability
- Data gaps: No combos supplied: floor, median and ceiling are text-only inference No tournament link: archetype meta-share and pilot match record absent No win-rate telemetry for this deck Meta Power stays provisional without a dated metagame sample No side deck for post-side evaluation Title is null in the export
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