A-to-Z Deck #774250 — Yu-Gi-Oh! Master Duel
40 Main, 15 Extra, incl. Union Activation x3, Droll & Lock Bird x2, Mulcharmy Fuwalos x2. Created Oct 25, 2026 by YGO Mod.
Created by: YGO Mod (20517634)
Created On: 10/25/2026
Main Deck (40)
- Droll & Lock Bird x2
- Maxx "C" x1
- Mulcharmy Fuwalos x2
- Mulcharmy Purulia x2
- X-Cross Cannon x2
- X-Head Cannon x1
- Ash Blossom & Joyous Spring x2
- Effect Veiler x2
- A-Assault Core x2
- B-Buster Drake x2
- C-Crush Wyvern x2
- Heavy Mech Support Armor x1
- Heavy Mech Support Platform x1
- Union Driver x1
- Y-Dragon Head x1
- Y-Yare Head x2
- Z-Metal Tank x1
- Z-Zillion Tank x2
- Super Polymerization x2
- Union Activation x3
- Union Hangar x1
- XYZ Combine x2
- A-to-Z Energy Load x1
- Infinite Impermanence x1
- Union Scramble x1
Extra Deck (15)
- A-to-Z-Dragon Buster Cannon x2
- ABC-Dragon Buster x2
- Garura, Wings of Resonant Life x1
- Mudragon of the Swamp x1
- Union Controller x1
- XYZ-Dragon Cannon x1
- XYZ-Hyper Dragon Cannon x1
- I:P Masquerena x1
- Knightmare Phoenix x1
- S:P Little Knight x1
- Underworld Goddess of the Closed World x1
- Gear Gigant X x1
- Heavy Armored Train Ironwolf x1
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57± 8/ 100
Power Score
Structural
61
Reliability
56
Going First
60
Going Second
58
Deck — Deck Power Evaluation
Final Contextual Deck Power: 57/100 (±8 · Confidence: Low)
| Overall score | Value |
|---|---|
| Structural Deck Power | 61.2 |
| Going First | 60 |
| Going Second | 58 |
| Meta Power | provisional |
| Tournament Reliability | 56 |
- Primary strategy: Combo
- Secondary strategies: Midrange, Stun
- Format: master-duel
Legality
Main 40 / Extra 15 / Side 0 — status: Legal.
Identity & game plan
- Win condition: Union/ABC Fusion bosses (ABC-Dragon Buster, A-to-Z-Dragon Buster Cannon) reached through the LIGHT Machine Union equip chain; XYZ-Hyper Dragon Cannon and XYZ-Dragon Cannon destroy-based boss lines
- Turn 1 (going first): Union Activation or Union Hangar searches a Union monster, which equips into A-Assault Core, B-Buster Drake or C-Crush Wyvern and feeds a Fusion Summon (Inferred from card text)
- Turn 2 (going second): Stop the opponent's first play with Ash Blossom, Effect Veiler, Droll & Lock Bird or Maxx "C", then rebuild the Union chain
- Recovery: Union Scramble and Dragon Buster GY/banish effects reuse banished LIGHT Machine monsters (Inferred from card text)
- After siding: Not applicable: Master Duel has no side deck in play; Side Deck size 0 is legal
Why it scores here
The deck is scored as a system: an A-to-Z/ABC Union engine with 8 searcher-text cards (P(at least one in a 5-card opener) ≈ 0.69) and a 22-copy archetype core that is almost always present (≈ 0.99 proxy) gives a reasonably reliable first-turn plan. Its interaction suite (Ash Blossom ×2, Effect Veiler ×2, Droll & Lock Bird ×2, Maxx "C", Infinite Impermanence, Union Scramble; 5 negation-text and 20 removal-text hits) is layered enough to hold the board on both turns, and the Extra Deck's 4000 and 3000 ATK Fusions give a high closing ceiling. Floor and median output are unmeasured because no recorded boards exist, so the ceiling rests on card text alone and is not reported as the average. The score comes from consistency, interaction and closing power on the system; archetype popularity earned no points, and card scores were not averaged. Eight off-engine Extra Deck singletons and Mulcharmy's empty-field draw condition, which clashes with Union monsters staying on the field, cost points.
Dimension scores
| # | Dimension | Score | Evidence |
|---|---|---|---|
| D1 | Engine Accessibility & Consistency | 62 | P(≥1 searcher-text card in a 5-card opener) ≈ 0.69 across 8 searchers; Union Activation ×3 gives P ≈ 0.34 in the opener; archetype core present in all but ~1.3% of openers (Inferred) |
| D2 | Opening-Hand Quality & Brick Management | 55 | Eight hand-trap cards and ten tech cards compete for hand slots, and several Union monsters do nothing without a field, so dead-hand risk is material; no hand-level simulation (Inferred) |
| D3 | Combo Conversion & Ceiling | 66 | Extra Deck ceiling is high (ABC-Dragon Buster 3000 ATK, A-to-Z-Dragon Buster Cannon 4000 ATK with negation text), but combo data has zero parseable boards, so the ceiling is text-only (Inferred) |
| D4 | Combo Floor & Median Output | 52 | No recorded boards, so median output and power distribution are unknown; neutral 52 held pending data (Provisional) |
| D5 | Interruption Resilience & Route Redundancy | 66 | Eight hand traps, two searchers and Union Hangar give several restart routes after one interruption, though every Union line still needs a LIGHT Machine monster on the field (Inferred) |
| D6 | Resource Economy, Recovery & Grind | 58 | Union Activation and Union Hangar provide search and float, but there is no recorded resource data, and Mulcharmy's draw-to-empty condition makes spend versus regeneration uneven (Inferred) |
| D7 | End-Board & Interaction Quality | 72 | Layered interaction: 2 Ash Blossom, 2 Effect Veiler, 2 Droll & Lock Bird, Maxx "C", Infinite Impermanence, Union Scramble, plus Extra Deck negation and destroy effects (Inferred from card text) |
| D8 | Going-Second & Board-Breaking Power | 68 | Going-second hand carries Droll, Maxx "C", Veiler and Ash (P(≥1 hand trap in a 6-card hand) ≈ 0.76); Extra Deck dragons challenge established boards, but no going-second combo split exists (Inferred) |
| D9 | Offensive Pressure & Closing Power | 72 | End-board ATK reaches 4000 (A-to-Z-Dragon Buster Cannon) and 3000 (ABC-Dragon Buster, XYZ-Hyper Dragon Cannon); closing is read from text (Verified stat, Inferred closing) |
| D10 | Main Deck Efficiency & Flexibility | 58 | 40 Main with 25 distinct cards and 14.5% exact-archetype purity; 22 archetype-core copies alongside 11 tech and hand-trap slots make a compact but mixed build (Verified counts, Inferred coherence) |
| D11 | Extra Deck Efficiency & Coverage | 55 | 15 Extra slots: two each of ABC-Dragon Buster and A-to-Z-Dragon Buster Cannon, plus 11 singletons, of which 8 are off-engine (Knightmare Phoenix, Garura, Gear Gigant X, Heavy Armored Train Ironwolf, Mudragon, I:P Masquerena, Underworld Goddess, S:P Little Knight) (Verified counts, Inferred coherence) |
| D12 | Side Deck Adaptability | 30 | Master Duel has no side deck; Side Deck size 0 is legal and there is no post-side data, so adaptability is held at a provisional 30 (Provisional) |
| D13 | Matchup Coverage & Format Fit | 50 | No tournament link or archetype meta-share is supplied, so matchup fit is unmeasured and held at neutral 50 (Provisional) |
| D14 | Pilotability & Error Tolerance | 45 | Multi-step Union chains with equip and Special Summon conditions, plus 15 Extra Deck routing choices, give many decision points for the pilot (Inferred) |
How the score was computed
Strategy profile: Combo. Structural ≈ 61.2, Going First ≈ 60, Going Second ≈ 58, Meta = provisional, Tournament Reliability ≈ 56. Modifiers: banlist exposure (-1); engine conflict (-2). Final formula: 0.80*Structural + 0.20*TournamentReliability (Meta provisional); 0.80*61.2 + 0.20*56 = 60.2, then modifiers -3 = 57
Probability & combo summary
- Opening a starter: P(≥1) ≈ 0.99 · 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 suite with eight hand traps plus Maxx "C", Infinite Impermanence and Union Scramble
- High Extra Deck ceiling with 4000 and 3000 ATK boss Fusions that carry negation or destroy text
- Archetype core is very likely to be present in the opening hand (Inferred proxy)
Weaknesses
- No recorded boards, so ceiling and median output are unverified
- Eight off-engine Extra Deck singletons dilute the Extra slots
- Mulcharmy draw condition clashes with Union field presence
Critical choke points
- Union Activation and Union Hangar are the main route to LIGHT Machine Union monsters
- LIGHT Machine monsters must be on the field for the Union equip chain to start
- Two copies of Super Polymerization are the only non-Summon route to the Extra Deck Fusions
Recommended changes
| Priority | Remove | Add | Reason |
|---|---|---|---|
| 1 | Mulcharmy Purulia (2 copies) | A second LIGHT Machine Union or Normal starter/searcher that fits the Union chain | Removes the empty-field draw condition clash and adds a second engine starter; judgement from card text, not a measured result |
| 2 | One off-engine Extra Deck singleton (e.g. Knightmare Phoenix or Garura) | An A-to-Z or ABC-linked Extra Deck card | Raises the share of Extra Deck slots that support the engine; judgement from the Extra Deck breakdown |
Evidence & confidence
- Verified: Legal Master Duel list: 40 Main, 15 Extra, 0 Side within size rules; Copy limits: Maxx "C" Limited 1/1; Droll & Lock Bird and Super Polymerization Semi-Limited 2/2; Archetype purity 14.5% exact-name; 47 off-archetype copies; Card counts and hand-trap, negation and removal text hint totals from the evidence pack
- Inferred: Engine consistency (P(≥1 searcher) ≈ 0.69; core presence ≈ 0.99 proxy); Going-second hand-trap coverage (P ≈ 0.76); Interaction quality from card text; Extra Deck closing ceiling from card text; Brick and dead-hand risk for Union monsters
- Provisional: Median output and matchup fit (no recorded boards or tournament link); Side-deck adaptability (Master Duel has no side)
- 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 are absent usage statistics in this deck flags contradict the resolved card list for several Extra Deck cards (e.g. ABC-Dragon Buster, A-to-Z-Dragon Buster Cannon, XYZ-Hyper Dragon Cannon are listed in Extra with copies but flagged in this deck false); the core-card presence of 56% is unreliable and was not used for scoring No win-rate telemetry; going-first, going-second, matchup and brick rates are Inferred or unknown Meta Power is Provisional; no dated metagame sample
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