Gren Maju Deck #42274 — Yu-Gi-Oh! Master Duel
60 Main, 15 Extra, incl. Alpha, the Master of Beasts x3, Danger! Bigfoot! x3, Danger! Thunderbird! x3.
Created by: YGO Mod (20517634)
Created On: 01/18/2023
Main Deck (60)
- Alpha, the Master of Beasts x3
- Danger! Bigfoot! x3
- Danger! Thunderbird! x3
- Dimension Shifter x3
- Eater of Millions x3
- Gadarla, the Mystery Dust Kaiju x3
- Gameciel, the Sea Turtle Kaiju x3
- Gizmek Orochi, the Serpentron Sky Slasher x3
- Gren Maju Da Eiza x3
- Maxx "C" x3
- Ash Blossom & Joyous Spring x3
- Deep Sea Diva x3
- Plaguespreader Zombie x1
- Allure of Darkness x3
- Foolish Burial x1
- Harpie's Feather Duster x1
- Interrupted Kaiju Slumber x2
- Lightning Storm x3
- Mind Control x2
- Monster Reborn x1
- Pot of Desires x3
- Trade-In x3
- Triple Tactics Talent x1
- Infinite Impermanence x3
Extra Deck (15)
- Relinquished Anima x1
- Baronne de Fleur x1
- Ruddy Rose Dragon x1
- Swordsoul Supreme Sovereign - Chengying x1
- Dingirsu, the Orcust of the Evening Star x1
- Divine Arsenal AA-ZEUS - Sky Thunder x1
- Downerd Magician x1
- Number 100: Numeron Dragon x1
- Number 38: Hope Harbinger Dragon Titanic Galaxy x1
- Number 68: Sanaphond the Sky Prison x1
- Number 77: The Seven Sins x1
- Number 84: Pain Gainer x1
- Number 97: Draglubion x1
- Sky Cavalry Centaurea x1
- The Zombie Vampire x1
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30± 10/ 100
Power Score
Structural
41
Reliability
35
Going First
38
Going Second
42
Deck — Deck Power Evaluation
Final Contextual Deck Power: 30/100 (±10 · Confidence: Low)
| Overall score | Value |
|---|---|
| Structural Deck Power | 41 |
| Going First | 38 |
| Going Second | 42 |
| Meta Power | provisional |
| Tournament Reliability | 35 |
- Primary strategy: Toolbox
- Secondary strategies: Combo, Blind-Second/OTK
- Format: master-duel
Legality
Main 60 / Extra 15 / Side 0 — status under the rules at evaluation time: Illegal. 3 violation(s).
Identity & game plan
- Win condition: Gren Maju Da Eiza, whose ATK and DEF scale with banished cards, supported by Kaiju and Danger! beaters; the guide describes an OTK plan built on this engine, but no recorded boards confirm the steps (Inferred).; Xyz and Synchro pressure from the Extra Deck (Number 77, Number 97, The Zombie Vampire, Ruddy Rose Dragon).
- Turn 1 (going first): Open with Gren Maju Da Eiza and banish fodder (Pot of Desires, Allure of Darkness), then extend into Xyz or Kaiju beats (Inferred; not confirmed by recorded boards).
- Turn 2 (going second): Use the 12 hand-trap copies to answer the opponent's first play, then rebuild the banish-based engine (Inferred).
- Recovery: Recover through Trade-In, Pot of Desires and Foolish Burial to find the engine and Extra Deck threats again (Inferred).
- After siding: Not applicable: the deck runs no Side Deck, and Master Duel does not use one.
Why it scores here
This list does not read as a focused Gren Maju deck: only 3 of its 75 non-generic copies carry the Gren Maju name, and the rest is a toolbox of hand traps, Kaiju, Danger! and Xyz monsters. Its engine, Gren Maju Da Eiza, has about a 23% chance of appearing in a 5-card opening hand, so the deck's functional start is unreliable. The 12 hand traps and 28 removal-text cards give it reasonable interaction and closing power on the system level, but no recorded boards exist to show how these pieces convert into a win. The three copy-limit violations (including a Forbidden card) mean the deck is not legal in Master Duel, so it receives a capped, structural-only score. Popularity and archetype naming were not used to earn points, and no card scores were averaged.
Dimension scores
| # | Dimension | Score | Evidence |
|---|---|---|---|
| D1 | Engine Accessibility & Consistency | 35 | P(at least one Gren Maju Da Eiza in a 5-card opening hand) ≈ 0.23; the engine is thin for its 3 copies (Inferred) |
| D2 | Opening-Hand Quality & Brick Management | 35 | Many single-copy tech and generic cards plus 12 hand traps that are dead without a hand; brick risk is high (Inferred) |
| D3 | Combo Conversion & Ceiling | 30 | No recorded boards exist; the ceiling rests on the guide's description of an OTK plan (Inferred) |
| D4 | Combo Floor & Median Output | 25 | No recorded boards exist, so the median output is unknown (Provisional) |
| D5 | Interruption Resilience & Route Redundancy | 45 | 12 hand traps and 9 negation-text cards give some disruption resilience, but few independent lines are visible (Inferred) |
| D6 | Resource Economy, Recovery & Grind | 40 | Banish-heavy engine with Pot of Desires and Trade-In as draw and recovery; the cost of banish fodder is unclear (Inferred) |
| D7 | End-Board & Interaction Quality | 55 | 28 removal-text cards and 9 negation-text cards give reasonable layering on the field (Inferred semantic) |
| D8 | Going-Second & Board-Breaking Power | 45 | 12 hand traps and several single-copy board breakers give some going-second strength (Inferred) |
| D9 | Offensive Pressure & Closing Power | 60 | Multiple 3000+ ATK threats (Danger! Bigfoot and Thunderbird, Alpha, Number 77 at 4000 ATK) give real closing power (Verified card text and stats) |
| D10 | Main Deck Efficiency & Flexibility | 40 | 60 main-deck slots over 24 distinct cards, mostly off-archetype and generic; the deck is not compact (Verified composition) |
| D11 | Extra Deck Efficiency & Coverage | 50 | 15 Extra Deck slots are used across Xyz, Synchro and Link with good coverage of beaters (Verified composition) |
| D12 | Side Deck Adaptability | 30 | No side deck is run and Master Duel has no side deck, so adaptability is not measurable (Provisional) |
| D13 | Matchup Coverage & Format Fit | 40 | No dated metagame sample or tournament link exists, so format fit is unknown (Provisional) |
| D14 | Pilotability & Error Tolerance | 50 | Multi-step banish and summon sequences plus a large hand-trap suite demand careful decisions (Inferred) |
How the score was computed
Strategy profile: Toolbox. Structural ≈ 41, Going First ≈ 38, Going Second ≈ 42, Meta = provisional, Tournament Reliability ≈ 35. Modifiers: Illegal copy limits and Forbidden card (-8); Off-archetype dilution of the engine (-2). Final formula: Illegal: theoretical structural-only. 0.80*Structural(41) + 0.20*TournamentReliability(35) ≈ 40, then legality cap applied (-8) and off-archetype dilution (-2) → 30. Meta Provisional.
Probability & combo summary
- Opening a starter: P(≥1) ≈ 0.23 · 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
- Strong closing threats at 3000+ ATK across the Main and Extra Decks
- Dense hand-trap suite (12 copies) for going second
- Broad removal and negation text across the list (28 removal-text cards)
Weaknesses
- Illegal in Master Duel: two cards over copy limit and one Forbidden card
- Engine (Gren Maju Da Eiza) appears in only 3 copies and is hard to open
- Mixed toolbox list with 75 off-archetype copies and weak engine coherence
Critical choke points
- Opening hand needs Gren Maju Da Eiza plus banish fodder; without it the deck has no plan (Inferred)
- Dimension Shifter is Forbidden, so the list cannot be played as built
Recommended changes
| Priority | Remove | Add | Reason |
|---|---|---|---|
| 1 | All 3 copies of Dimension Shifter | A legal card that fills the same hand-trap or disruption slot, or a legal card from the Gren Maju or banish-fodder package | Forbidden in Master Duel; the deck cannot be legal until it is removed. |
| 2 | 2 of the 3 copies of Allure of Darkness and 2 of the 3 copies of Maxx "C" | Single-copy legal replacements (for example, other banish or draw cards already in the list) | Each of these is Limited to 1 copy in Master Duel; reducing to 1 copy each makes the list legal. |
| 3 | Several single-copy generic tech cards (for example Triple Tactics Talent) | More Gren Maju or Maju-named cards to raise the engine's density | Only 3 Gren Maju copies exist, so the engine is hard to open; more engine cards would improve consistency (Inferred). |
Evidence & confidence
- Verified: Copy-limit violations and Forbidden status (legality check); Card text and stat values for each card in the list; Composition counts (main 60, extra 15, side 0, 24 distinct main cards)
- Inferred: Engine opening chance ≈ 23% from the hypergeometric estimate; Gren Maju OTK plan from the guide's description; Hand-trap and removal coverage from card text
- Provisional: Meta Power (no dated metagame sample); Matchup fit and side-deck adaptability (no post-side or meta data)
- Data gaps: No recorded boards, so the floor, median and ceiling are text-only inferences No tournament link, so meta share and pilot match records are absent No win-rate telemetry exists in YGOVN for going-first, going-second, matchups or brick rates Usage-statistics core list belongs to other archetypes (Power Patron, Mitsurugi, Artmage) and does not match this deck's Gren Maju identity, so it was not used Meta Power is provisional without a dated metagame sample
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