Synchron Deck #771559 — Yu-Gi-Oh! OCG

Deck — Deck Power Evaluation

Final Contextual Deck Power: 35/100 (±8 · Confidence: Medium)

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

Legality

Main 55 / Extra 15 / Side 0 — status under the rules at evaluation time: Illegal. 2 violation(s).

Identity & game plan

• Win condition: Synchro Summon boss monsters (Accel Synchro Stardust Dragon, Stardust Dragon, Kewl Tune B2B, Fabled Levilazebul, Vidolium) from a Toolbox-style spread of hand traps and staples; no single dependable engine.; Link and Fusion finishers (Mediclius, Artmage Diactorus) reached through Medius and Power Patron searches.
• Turn 1 (going first): Open one Tuner plus a searcher or hand-trap-backed starter (Elfnote Power Patron, Ghost Belle, Ash Blossom) and Synchro into a single boss; the hand is often missing the second piece.
• Turn 2 (going second): Hold Ash Blossom, Ghost Belle, Ghost Ogre, D.D. Crow and Droll & Lock Bird to answer the opponent's first engine, then rebuild with Mulcharmy draw and Theorealize.
• Recovery: Mulcharmy Fuwalos/Purulia draw, Medius and Theorealize recursion from the GY, and Stardust Dragon's GY-based revival.
• After siding: Not applicable: the list has no Side Deck (0 cards), so no post-side plan exists in this build.

Why it scores here

This list is Illegal in OCG: Elfnote Lucina is run 3 copies against a limit of 1 and Ash Blossom & Joyous Spring 3 against a limit of 2, so it receives only a capped, theoretical structural read. Its engine is accessible (a searcher-text density of 0.92 in the 5-card opening hand and 12 Tuners across 12 Synchro targets), and its interaction package (13 hand traps, 10 negation texts, 28 removal texts) gives it a strong going-second hand. Consistency is the main weakness: 70 of 84 main-deck copies sit outside the exact Synchron name, spread across Elfnote, Ars Magna, Mulcharmy, Power Patron, D.D., Medius, Solemn and Stardust, so each opening hand risks bricking or conflicting. No combo boards were recorded, so the ceiling and median are text-only inference. Popularity (the Mulcharmy Fuwalos and Droll & Lock Bird core usage) confirms the list is accessible, not that it is strong; it did not earn points. The score was not produced by averaging individual card scores.

Dimension scores

How the score was computed

Strategy profile: Toolbox 0.7 / Midrange 0.3. Structural ≈ 49.8, Going First ≈ 45, Going Second ≈ 55, Meta = provisional, Tournament Reliability ≈ 35. Modifiers: banlist exposure (-10); engine conflicts (-2). Final formula: Illegal list: theoretical/structural-only cap. Final = 0.80*Structural + 0.20*TournamentReliability (Meta provisional) + ContextModifiers = 0.80*49.8 + 0.20*35 - 12 = 34.8, rounded to 35

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 hand-trap and negation package (13 hand traps, 10 negation texts) gives a strong going-second hand
• Synchro boss density on the Extra Deck (12 Synchro, Accel Synchro Stardust Dragon, Kewl Tune B2B, Vidolium 5000 ATK)
• Multiple search and recursion paths (21 searcher texts, Mulcharmy draw, Medius and Theorealize recursion)

Weaknesses

• Illegal copy counts (Elfnote Lucina 3/1, Ash Blossom 3/2) and multiple Limited cards
• Low exact-archetype purity (0%) across 9+ sub-archetypes: high brick and conflict risk
• No Side Deck (0 cards) and no recorded combo boards to validate the ceiling

Critical choke points

• A single Tuner plus Synchro sequence is required for most boss lines; losing the Tuner to a hand trap stops the turn
• Elfnote Lucina and Ash Blossom copy limits: the list cannot be played as built, so any fix must cut copies first

Recommended changes

Evidence & confidence

• Verified: Deck is Illegal: 55 Main, 15 Extra, 0 Side; Elfnote Lucina 3 copies vs 1 legal; Ash Blossom 3 vs 2 legal; Card text and banlist status for all 28 Main and 15 Extra distinct cards; Usage stat: Mulcharmy Fuwalos 60.6% inclusion, Droll & Lock Bird 56.3%; both present (2/2 core)
• Inferred: P(>=1 3-copy starter in hand5) = 0.2529; hand-trap P(>=1 in hand6) = 0.819; Brick and conflict risk from 70/84 off-archetype copies; Going-first vs going-second split from card text, not measured boards
• Provisional: Meta Power (null) and matchup fit (D13) need a dated metagame sample
• Data gaps: No combos supplied: combo floor, median and ceiling are text-only inference No tournament link: archetype meta-share and per-pilot match record absent No win-rate telemetry: 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 in the export