Synchron Deck #771697 — Yu-Gi-Oh! OCG
55 Main, 14 Extra, incl. Mulcharmy Fuwalos x3, X-Cross Cannon x3, Lightning Storm x3. Created Oct 21, 2026 by YGO Mod.
Created by: YGO Mod (20517634)
Created On: 10/21/2026
Main Deck (55)
- Beast King Barbaros x1
- Chaos Allure Queen x1
- Droll & Lock Bird x1
- Mulcharmy Fuwalos x3
- Therion "King" Regulus x1
- X-Cross Cannon x3
- X-Head Cannon x1
- Destrudo the Lost Dragon's Frisson x1
- Revolution Synchron x1
- A-Assault Core x2
- B-Buster Drake x2
- C-Crush Wyvern x2
- Union Driver x1
- Union Pilot x1
- Y-Yare Head x2
- Z-Zillion Tank x1
- Dragon Ravine x1
- Harpie's Feather Duster x1
- Lightning Storm x3
- Magical Mid-Breaker Field x1
- Pot of Sloth x2
- Rainbow Bridge Bifrost x1
- Set Rotation x1
- Terraforming x1
- Therion Discolosseum x1
- Triple Tactics Thrust x2
- Unauthorized Reactivation x3
- Union Activation x3
- Union Hangar x3
- Angel Statue - Azurune x1
- Evenly Matched x3
- Metalhold the Moving Blockade x1
- Simul Archfiends x3
Extra Deck (14)
- ABC-Dragon Buster x2
- Chimeratech Megafleet Dragon x1
- Union Controller x2
- XYZ-Hyper Dragon Cannon x1
- Platinum Gadget x1
- Silhouhatte Rabbit x1
- Underworld Goddess of the Closed World x1
- Ancient Fairy Dragon x1
- Juraishin, the Cursed Thunder God x1
- Psychic End Punisher x1
- Cyber Dragon Nova x1
- Tellarknight Ptolemaeus x1
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Deck — Deck Power Evaluation
Final Contextual Deck Power: 49/100 (±8 · Confidence: Medium)
| Overall score | Value |
|---|---|
| Structural Deck Power | 54 |
| Going First | 55 |
| Going Second | 56 |
| Meta Power | provisional |
| Tournament Reliability | 42 |
- Primary strategy: Toolbox
- Secondary strategies: Midrange, Tempo
- Format: ocg
Legality
Main 56 / Extra 14 / Side 0 — status: Legal with warning.
Identity & game plan
- Win condition: Union-equip and Machine/LIGHT boss monsters (ABC-Dragon Buster, XYZ-Hyper Dragon Cannon, Union Controller, Barbaros, Psychic End Punisher) built from searched Union and Machine pieces; Fusion/Link/Synchro/Xyz boss monsters that recur through Union Hangar, Union Activation and Mulcharmy draws
- Turn 1 (going first): Search a Union monster with Union Hangar, Union Activation or Therion Discolosseum, then equip or Special Summon Union monsters from the Deck to build a board; Droll & Lock Bird and Lightning Storm protect the line
- Turn 2 (going second): Hold Evenly Matched, Droll & Lock Bird, Simul Archfiends and Harpie's Feather Duster for the opponent's turn; use Barbaros or Lightning Storm to break the board, then extend into an Extra Deck boss
- Recovery: Mulcharmy Fuwalos discard draw, Pot of Sloth, Union Pilot and Unauthorized Reactivation recursion, and Dragon Ravine / Therion searchers to rebuild a starter
- After siding: No side deck is registered (0 cards), so there is no post-side plan; the deck cannot adjust between games of a best-of-3
Why it scores here
The deck opens a functional plan reasonably often: 16 searcher-text cards give about 83% odds of at least one searcher in a 5-card opening hand (Inferred), but any single starter has only about 25% odds of appearing in the opener, so the engine depends on search chains rather than a single card. Its interaction suite is the strongest part of the system: Lightning Storm, Harpie's Feather Duster, Evenly Matched, Droll & Lock Bird, Simul Archfiends and Barbaros give it several ways to break a board, and it has large boss monsters in the Extra Deck to close. Consistency and efficiency are weak: 56 Main Deck cards include 23 Spells, 8 Traps and nine tech cards with no shared engine, the copy histogram is spread across many distinct cards, and the 70 off-archetype copies mean the Synchron name contributes almost nothing to the list. No combo boards are recorded, so the score rests on text reads and probability estimates, not on measured output. The score comes from consistency, interaction and closing power on the system, not from Synchron's popularity or from averaging individual card scores.
Dimension scores
| # | Dimension | Score | Evidence |
|---|---|---|---|
| D1 | Engine Accessibility & Consistency | 55 | P(>=1 searcher in opener) ≈ 0.83 and P(>=1 specific 3-copy starter) ≈ 0.25; engine lives on search chains (Inferred) |
| D2 | Opening-Hand Quality & Brick Management | 45 | Median-to-high brick risk: 23 Spells and 8 Traps with many non-engine tech cards; archetype-core proxy brick ≈ 0.68 (Inferred) |
| D3 | Combo Conversion & Ceiling | 60 | Ceiling from Union equip chains into 3000-ATK Fusion and Link bosses; no recorded boards to confirm (Inferred) |
| D4 | Combo Floor & Median Output | 45 | Median output unknown: combos_evidence has zero boards, so this is text-only inference (Provisional) |
| D5 | Interruption Resilience & Route Redundancy | 55 | Multiple recursion routes (Mulcharmy, Union Pilot, Unauthorized Reactivation) and several searchers; a single interruption can usually be routed around (Inferred) |
| D6 | Resource Economy, Recovery & Grind | 58 | Pot of Sloth, Mulcharmy draw and Union Activation recursion cover card economy (Inferred) |
| D7 | End-Board & Interaction Quality | 72 | Lightning Storm, Feather Duster, Evenly Matched, Droll & Lock Bird, Simul Archfiends and Regulus give 24 removal-text and 2 negation-text hits (Inferred semantic) |
| D8 | Going-Second & Board-Breaking Power | 66 | Barbaros Tribute Summon board wipe and Lightning Storm are real going-second answers; Regulus negation adds layers (Inferred) |
| D9 | Offensive Pressure & Closing Power | 70 | Boss ATK of 3000–3500 (Psychic End Punisher, Juraishin, Barbaros, Dragon Buster, XYZ-Hyper Dragon Cannon) is verified from card data; conversion is Inferred |
| D10 | Main Deck Efficiency & Flexibility | 40 | 56 Main cards at the 60-card cap with 9 tech cards and 4 hand traps dilutes engine density (Inferred) |
| D11 | Extra Deck Efficiency & Coverage | 55 | 14 Extra Deck cards across Fusion, Link, Synchro and Xyz with two Union Controllers and two Dragon Busters; mixed use of the slots (Inferred) |
| D12 | Side Deck Adaptability | 20 | No Side Deck cards at all; no post-side plan is possible in a best-of-3 (Verified from list) |
| D13 | Matchup Coverage & Format Fit | 45 | Provisional: no dated meta sample and no tournament link; archetype share absent, so D13 is excluded from the structural renormalisation |
| D14 | Pilotability & Error Tolerance | 40 | Multi-step Union equip and summon sequencing with many decision points for the pilot (Inferred) |
How the score was computed
Strategy profile: Toolbox. Structural ≈ 54, Going First ≈ 55, Going Second ≈ 56, Meta = provisional, Tournament Reliability ≈ 42. Modifiers: weak_post_side_plan (-3). Final formula: 0.80*Structural(D13 dropped, renormalised over 95) + 0.20*TournamentReliability + ContextModifiers(-3) (Meta provisional)
Probability & combo summary
- Opening a starter: P(≥1) ≈ 0.25 · key two-card combo ≈ — · full-brick estimate ≈ 0.68 (all Inferred)
- Combo output: best PowerIndex —, median —, board-per-starter —
- Turn order: 0 going-first lines vs 0 going-second lines
Strengths
- Eight-plus interaction cards across Spells, Traps and monsters give layered board answers
- Large Extra Deck bosses (3000–3500 ATK) give a real closing threat
- 16 searchers give a high chance of finding a searcher in the opener
Weaknesses
- Declared Synchron archetype with 0% exact-name purity; the list is a loose mix of Union, ABC, Machina and tech cards
- Nine tech cards and 23 Spells dilute the engine and raise brick risk
- Zero Side Deck cards, so no adaptation for best-of-3
- No recorded combo boards, so the floor and median are unmeasured
Critical choke points
- Most Union lines need a Machine/LIGHT target on the field, so an early board wipe or a clean Lightning Storm stalls the engine
- The Extra Deck boss lines depend on Union Controller and Dragon Buster, which need specific banished or GY materials
Recommended changes
| Priority | Remove | Add | Reason |
|---|---|---|---|
| 1 | One Harpie's Feather Duster or Magical Mid-Breaker Field (one tech slot) | Side Deck cards (up to 15) covering the top opposing archetypes | A 0-card Side Deck makes the list unable to adapt in a best-of-3 event; a side plan is the largest single gain |
| 2 | Set Rotation and Terraforming (Field-only tech) | Extra copies of Union Hangar or Mulcharmy Fuwalos | Field-only tech conflicts with the deck's own Field Spells and adds dead cards to the opening hand |
| 3 | Metalhold the Moving Blockade or Angel Statue - Azurune | Union Pilot / Union Driver copies or a Machine searcher | Fills the Union engine instead of a non-synergistic Trap |
Evidence & confidence
- Verified: Legal with warning: size 56/14/0 within OCG limits; 5 Limited cards each at 1 copy (compliant); Card text and stats for all resolved cards; One passcode (10443957) could not be resolved and is counted as Main
- Observed: Mulcharmy Fuwalos (60.6%) and Droll & Lock Bird (56.3%) are core cards of the archetype usage sample
- Inferred: P(>=1 searcher in opener) ≈ 0.83; P(>=1 specific 3-copy starter) ≈ 0.25 (hypergeometric); Interaction breadth from removal and negation text; Brick proxy ≈ 0.68 for the archetype core
- Provisional: Meta Power is null; D13 is excluded from the structural score; Tournament Reliability is an estimate
- Data gaps: no combos supplied — combo floor/median/ceiling is text-only inference no tournament link — archetype meta-share and per-pilot match record absent 1 passcode(s) in CardIDList could not be resolved to a card (counted as main) no win-rate telemetry exists in YGOVN — going-first/second, matchup, brick and starter rates are Inferred or Unknown Meta Power is Provisional unless a dated metagame sample is supplied Side Deck is empty (0 cards)
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