Synchron Deck #771802 — Yu-Gi-Oh! OCG

Deck — Deck Power Evaluation

Final Contextual Deck Power: 40/100 (±12 · Confidence: Low)

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

Legality

Main 58 / Extra 15 / Side 0 — status under the rules at evaluation time: Illegal. 1 violation(s).

Identity & game plan

• Win condition: Synchro Summon a Dragon or Warrior boss (Cosmic Blazar Dragon, Shooting Quasar Dragon, Red Supernova Dragon, Junk Warrior) from a Tuner plus non-Tuner board; Stardust Dragon loop through Accel Synchro Stardust Dragon and Stardust Dragon - Victim Sanctuary
• Turn 1 (going first): Search a Tuner or Synchro starter with Tuning, Junk Meister, Stardust Synchron or Mulcharmy draw effects, then Synchro Summon a boss while holding Ash Blossom or Droll for interaction
• Turn 2 (going second): Use hand traps (Ash Blossom, Ghost Ogre, Effect Veiler, Infinite Impermanence, Solemn cards) to break the opponent's first combo, then rebuild through GY Tuner effects
• Recovery: Recover from GY using Jet Synchron, Crossroad Sonic Chick, Anchorbolt Hedgehog and Junk Synchron effects to re-enter Synchro lines
• After siding: Not evaluable: side deck is empty (0 of 15 slots), so no post-side plan exists

Why it scores here

The deck reliably opens a Tuner-rich Synchro engine: roughly 16 Tuners and 17 searcher-text cards give about an 84 percent chance of at least one searcher in an opening 5-card hand (Inferred), so the engine turns on early more often than the copy count alone suggests. Interaction is its strongest system trait, with 10 hand traps, four Solemn cards, Lightning Storm, Harpie's Feather Duster and Infinite Impermanence producing layered answers and about a 70 percent chance of a hand trap in a going-second 6-card hand (Inferred). Combo conversion and median output were not scored from data because no recorded boards exist, so the ceiling rests on text reads of the Extra Deck bosses. The score is pulled down by the 58-card main with 42 distinct cards and only 2.7 percent exact archetype purity across roughly a dozen sub-themes that compete for slots, by an empty side deck, and by a copy count that breaks the OCG limit on Ash Blossom. Popularity did not earn points: Mulcharmy Fuwalos at 60.6 percent usage and Droll and Lock Bird at 56.3 percent confirm the list is real, not that it is strong, and no card scores were averaged.

Dimension scores

How the score was computed

Strategy profile: Combo. Structural ≈ 56.4, Going First ≈ 55, Going Second ≈ 58, Meta = provisional, Tournament Reliability ≈ 45. Modifiers: banlist exposure (-6); engine conflicts (-4). Final formula: Illegal status: theoretical/structural-only. Computed 0.80*56.4 + 0.20*45 = 54.1, plus modifiers -10 = 44.1, capped at 40 because the deck is illegal as built. Meta provisional (null).

Probability & combo summary

• Opening a starter: P(≥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

• Dense tuner count and searcher text give frequent access to a Synchro engine
• Layered interaction: ten hand traps, four Solemn cards, Lightning Storm and Harpie's Feather Duster
• Full, redundant Extra Deck with several 4000-ATK bosses and multiple Stardust Dragon versions

Weaknesses

• Illegal as built: Ash Blossom & Joyous Spring at 3 copies against an OCG limit of 2
• No side deck (0 of 15), so no post-side adaptation or matchup-specific plan
• Low exact archetype purity (2.7 percent) across about a dozen sub-themes that compete for slots
• Large, unfocused main deck (58 cards, 42 distinct) with high brick and dead-draw risk

Critical choke points

• Ash Blossom copy count: the deck cannot be legally played until a copy is removed
• Tuner density in hand: a hand without a Tuner or searcher cannot start the Synchro engine
• Hand-trap dependence: a going-second hand with no hand trap leaves the first combo unanswered

Recommended changes

Evidence & confidence

• Verified: Illegal status: Ash Blossom & Joyous Spring at 3 copies against an OCG limit of 2; Four Limited cards (Droll and Lock Bird, Harpie's Feather Duster, Reinforcement of the Army, Synchro Overtake) each run at one copy; Main 58, Extra 15, Side 0; within OCG size rules; Usage: Mulcharmy Fuwalos 60.6 percent inclusion, Droll and Lock Bird 56.3 percent
• Observed: Guide snippet (Tà Đạo Holactie Synchron) notes brick and instability in this build
• Inferred: Hypergeometric draw odds: searcher at least one in hand5 0.84; hand trap at least one in hand6 0.70; archetype core 0.31; Brick, starter and engine-access estimates from composition and card text; Interaction density and going-second strength from hand-trap count and text reads
• Provisional: Meta Power (null) and D13 matchup/format fit: no dated metagame sample or tournament link; Post-side performance (D12): no side deck and no side evidence
• Data gaps: No combos supplied: combo floor, median and ceiling are text-only inference No tournament link: archetype meta-share and per-pilot record absent No win-rate telemetry for going-first, going-second, matchup, brick or OTK rates Meta Power is Provisional unless a dated metagame sample is supplied Deck title is null, so the build's intended plan is inferred from the card list and one guide snippet Side deck empty (0 of 15): post-side performance cannot be assessed