Gem-Knights Deck #766425 — Yu-Gi-Oh! Master Duel
40 Main, 15 Extra, incl. Gem-Knight Nepyrim x3, Gem-Knight Quartz x3, Mulcharmy Fuwalos x3. Created Oct 18, 2026 by YGO Mod.
Created by: YGO Mod (20517634)
Created On: 10/18/2026
Main Deck (40)
- Gem-Armadillo x1
- Gem-Knight Hollowcore x2
- Gem-Knight Nepyrim x3
- Gem-Knight Quartz x3
- Maxx "C" x1
- Mulcharmy Fuwalos x3
- Mulcharmy Purulia x3
- Ash Blossom & Joyous Spring x3
- Ghost Mourner & Moonlit Chill x2
- Ghost Ogre & Snow Rabbit x2
- Brilliant Fusion x3
- Forbidden Droplet x3
- Gem-Knight Dispersion x3
- Gem-Knight Fusion x1
- Pot of Sloth x3
- Scatter Fusion x1
- Infinite Impermanence x3
Extra Deck (15)
- Gem-Knight Amethyst x1
- Gem-Knight Aquamarine x1
- Gem-Knight Lady Brilliant Diamond x1
- Gem-Knight Lady Lapis Lazuli x1
- Gem-Knight Lady Rose Diamond x1
- Gem-Knight Master Diamond x1
- Gem-Knight Master Diamond Dispersion x2
- Gem-Knight Prismaura x1
- Gem-Knight Ruby x1
- Gem-Knight Seraphinite x1
- Gem-Knight Topaz x1
- Gem-Knight Phantom Quartz x2
- Sky Striker Ace - Azalea x1
error
Couldn't load the deck
62± 8/ 100
Power Score
Structural
64
Reliability
55
Going First
64
Going Second
62
Deck — Deck Power Evaluation
Final Contextual Deck Power: 62/100 (±8 · Confidence: Medium)
| Overall score | Value |
|---|---|
| Structural Deck Power | 64 |
| Going First | 64 |
| Going Second | 62 |
| Meta Power | provisional |
| Tournament Reliability | 55 |
- Primary strategy: Combo
- Secondary strategies: Midrange
- Format: master-duel
Legality
Main 40 / Extra 15 / Side 0 — status: Legal.
Identity & game plan
- Win condition: Fusion Summon a high-ATK Gem-Knight Fusion Monster (Lady Brilliant Diamond, Master Diamond, Topaz, Ruby) and attack through a board that Gem-Knight Phantom Quartz and Master Diamond Dispersion can extend.; Gem-Knight Master Diamond Dispersion and Phantom Quartz extension lines that recur Gem-Knight monsters from the GY, supported by Brilliant Fusion and Gem-Knight Dispersion.
- Turn 1 (going first): Opening starter from Gem-Knight Quartz, Nepyrim, Brilliant Fusion or Dispersion, search a Gem-Knight with Nepyrim or Armadillo, then Fusion Summon into a 3000-class Fusion monster while holding Ash Blossom or Impermanence for the first interaction.
- Turn 2 (going second): Use a hand trap from the 6-card hand (Ash Blossom, Impermanence, Ghost Ogre, Ghost Mourner, Maxx C) to break the opponent's first combo line, then rebuild through Quartz and Dispersion.
- Recovery: Banish Gem-Knight cards from the GY to re-Fusion, use Master Diamond Dispersion from the Extra Deck, and Phantom Quartz to add a Gem-Knight from the Deck to the hand.
- After siding: No Side Deck is run, so there is no post-side plan; adding side cards is the main open lever (see recommendations).
Why it scores here
The deck is scored as a Fusion-engine system: ten 3-copy main-deck cards and 23 archetype-core copies give a high chance of at least one starter in hand, so the engine is usually live on turn 1 or 2 (Inferred). Its hand-trap package of 9 cards (Ash Blossom, Infinite Impermanence, Ghost Ogre, Maxx C) gives it a real way to continue through the opponent's first play, with an estimated 81% chance of one hand trap in a 6-card going-second hand (Inferred). Closing power is strong because the Extra Deck contains several 2400-3400 ATK Fusion monsters and Lady Brilliant Diamond can attack multiple times. The score is not from Gem-Knights being a popular archetype, and no per-card scores were averaged; the deck has no recorded boards and no side deck, which caps consistency and post-side adaptability.
Dimension scores
| # | Dimension | Score | Evidence |
|---|---|---|---|
| D1 | Engine Accessibility & Consistency | 72 | P(at least one 3-copy starter in 5-card hand) = 0.34 per card; archetype-core group P(open) = 0.99 (Inferred) |
| D2 | Opening-Hand Quality & Brick Management | 58 | Ten 2- and 3-copy engine/hand-trap cards plus Maxx C and Ghost Ogre compete for hand space, giving some dead or conflicting draws (Inferred) |
| D3 | Combo Conversion & Ceiling | 70 | Ceiling reads from Fusion chains into 3000-class boards via Brilliant Fusion, Dispersion and Master Diamond Dispersion; no recorded boards (Inferred semantic read) |
| D4 | Combo Floor & Median Output | 58 | No combos evidence available, so median output is a text-only estimate with a single-card starter bias (Inferred) |
| D5 | Interruption Resilience & Route Redundancy | 66 | Nine hand traps and Phantom Quartz/Master Diamond Dispersion recursion provide at least two independent continuation routes after one interruption (Inferred) |
| D6 | Resource Economy, Recovery & Grind | 62 | Gem-Knight Fusion and Dispersion recover from the GY and Pot of Sloth gives card flow; resource costs are modest but still uncounted (Inferred) |
| D7 | End-Board & Interaction Quality | 62 | Forbidden Droplet, Infinite Impermanence and Gem-Knight Hollowcore cover the end-board with negation and removal text (Inferred semantic) |
| D8 | Going-Second & Board-Breaking Power | 64 | Ghost Mourner, Ghost Ogre, Ash Blossom and Maxx C are hand-trap style going-second tools; 81% chance of one in a 6-card hand (Inferred) |
| D9 | Offensive Pressure & Closing Power | 74 | Master Diamond 2900, Lady Brilliant Diamond 3400 with double attack, Topaz double attack, Ruby 2500 (Verified card text and ATK) |
| D10 | Main Deck Efficiency & Flexibility | 66 | Exactly 40 main cards with 10 three-copy and 3 two-copy staples; 17 zero-level cards are Spells/Traps, a lean but not extreme spread (Verified composition) |
| D11 | Extra Deck Efficiency & Coverage | 68 | 15/15 Extra Deck with 3 Link and 12 Fusion; two-copy Phantom Quartz and Master Diamond Dispersion anchor 11 single-copy Fusions (Verified composition, Inferred access) |
| D12 | Side Deck Adaptability | 20 | No Side Deck (side count 0); no post-side plan can be evaluated, so this scores low (Verified legality, Provisional) |
| D13 | Matchup Coverage & Format Fit | 50 | tournament_context unavailable and no dated metagame sample supplied; neutral placeholder (Provisional) |
| D14 | Pilotability & Error Tolerance | 45 | Multi-step Fusion chains with banish/GY costs and several 'once per turn' choices are demanding to pilot (Inferred) |
How the score was computed
Strategy profile: Combo. Structural ≈ 64, Going First ≈ 64, Going Second ≈ 62, Meta = provisional, Tournament Reliability ≈ 55. Modifiers: No context modifier (0). Final formula: 0.80*Structural + 0.20*TournamentReliability (Meta provisional)
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 starter density (Quartz, Nepyrim, Brilliant Fusion, Dispersion at 3 copies)
- Nine hand traps give going-second interaction
- Strong Fusion closing power with multiple 2400-3400 ATK monsters
- Exactly 40/15 legal sizes with Maxx C at its Limited cap
Weaknesses
- No Side Deck (0 cards), so no post-side adaptability
- Fusion chains are multi-step and punish misplays (D14)
- Reliance on Extra Deck single copies to convert
- No combos or tournament data to validate the ceiling
Critical choke points
- Gem-Knight Fusion (1 copy) as the only fusion-material spell in hand
- Brilliant Fusion/Quartz as the sole T1 starters if hand traps are held
Recommended changes
| Priority | Remove | Add | Reason |
|---|---|---|---|
| 1 | None | Up to 15 Side Deck cards | A zero-card Side Deck leaves D12 at 20; adding side cards is the largest single gain and is within the Master Duel 0-15 side rule. |
| 2 | Scatter Fusion (1 copy) | Second Gem-Knight Fusion (if legal in the list) | Gem-Knight Fusion is the only single-copy fusion-material spell; a second copy would reduce the choke point (Inferred). |
Evidence & confidence
- Verified: Legal 40/15/0 size under master-duel rules; Maxx C Limited at 1 copy run; Card counts and types from deck evidence; Core-card inclusion percentages from usage_statistics
- Inferred: Starter hypergeometric estimates (0.34 per 3-copy card, 0.99 archetype-core proxy); Hand-trap coverage 0.81 going second; Fusion-chain conversion ceiling and median; Brick and pilotability estimates
- Provisional: Meta Power (no dated metagame sample); D13 matchup/format fit placeholder
- Data gaps: no combos supplied; combo floor/median/ceiling is text-only inference no tournament link; archetype meta-share and per-pilot record absent no win-rate telemetry for going-first/second, matchup, or brick/starter rates Meta Power provisional unless a dated metagame sample is supplied
error
Couldn't load the combos
Menu
https://metaduelist.com/