Gem-Knights Deck #773613 — Yu-Gi-Oh! Master Duel

Deck — Deck Power Evaluation

Final Contextual Deck Power: 55/100 (±6 · Confidence: Medium)

• Primary strategy: Combo
• Secondary strategies: Toolbox, 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 boss (Lady Brilliant Diamond 3400 ATK, Master Diamond 2900, Lady Rose Diamond 2700) and attack through an opponent's board, with Garura and Topaz as secondary damage routes; Gem-Knight Ruby and Topaz double-attack and direct-damage text off Fusion boards; Garura doubles battle damage
• Turn 1 (going first): Open with a Fusion Spell (Brilliant Fusion, Gem-Knight Dispersion, Gem-Knight Fusion or Scatter Fusion) or a Gem-Knight search (Nepyrim or Quartz) to Fusion Summon a first Gem-Knight boss, then use the Quartz/Nepyrim search chain to find the next Fusion Spell
• Turn 2 (going second): Use hand traps (Infinite Impermanence, Ghost Ogre and Snow Rabbit, Droll and Lock Bird, Maxx C) to interrupt the opponent, then rebuild with a Fusion Spell and Gem-Knight Fusion Monsters; Raigeki, Heavy Storm, Harpie's Feather Duster and Lightning Storm handle the opponent's board
• Recovery: Recover from Gem-Knight Fusion GY effects (banish Gem-Knight from GY to add Gem-Knight Fusion back to hand), Hollowcore revival from the Deck, and Nepyrim/Gem-Armadillo searches to reload Fusion Spells
• After siding: Not applicable: Master Duel has no side deck (side count 0), so there is no post-side plan; adaptation is limited to in-match choices

Why it scores here

The deck reliably opens a Fusion plan: 8 Fusion Spells (Brilliant Fusion x3, Gem-Knight Dispersion x3, Gem-Knight Fusion x1, Scatter Fusion x1) plus 9 Gem-Knight Main Deck monsters give roughly a 69% chance of at least one Fusion Spell in a 5-card opening hand (hypergeometric, Inferred). Conversion is strong at the ceiling: 13 Fusion/Synchro/Xyz/Link boss options reach 2700 to 3400 ATK, and the Gem-Knight GY recursion lets a single Fusion Spell rebuild after interruption. Survival is mixed: four Limited or Semi-Limited hand traps and Ultimate Slayer give interaction, and four board breakers (Raigeki, Heavy Storm, Feather Duster, Lightning Storm) help on the going-second turn, but several dead-in-hand reactive cards (Triple Tactics, Droll, Maxx C, Ghost Ogre) and the Mulcharmy engine conflicting with a Gem-Knight board lower the median. The Combo weight profile was applied to the systemic dimensions above; the archetype's popularity (archetype usage stats, 16 generic cards, guide notes of brickiness) was not credited as power, and card scores were not averaged. No combo boards were supplied, so the ceiling and floor are text-only inference.

Dimension scores

How the score was computed

Strategy profile: Combo. Structural ≈ 58.1, Going First ≈ 60, Going Second ≈ 56, Meta = provisional, Tournament Reliability ≈ 50. Modifiers: engine conflicts (-2). Final formula: 0.80*Structural + 0.20*TournamentReliability (Meta provisional); Final = 0.80*58.1 + 0.20*50 = 56.5, then context modifiers -2 = 54.5, rounded to 55

Probability & combo summary

• Opening a starter: P(≥1) ≈ 0.69 · 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

• Fusion Spell density (8) with a 69% opening-hand starter rate
• Strong boss ceiling (Lady Brilliant Diamond 3400 ATK, Master Diamond 2900 ATK) with GY recursion
• Four board breakers plus hand-trap interaction for the going-second turn

Weaknesses

• Reactive cards (hand traps and board breakers) are dead in hands without opponent action
• Mulcharmy and Pot of Sloth dilute the Gem-Knight plan
• No side deck and no combo or win-rate data

Critical choke points

• Opening-hand Fusion Spell (8 copies in a 40-card Main Deck; ~31% chance of none in a 5-card hand)
• Fusion Materials: Gem-Knight monsters in the Main Deck (9) are the only material pool for most bosses

Recommended changes

Evidence & confidence

• Verified: Legal 40/15/0 Master Duel list; four restricted cards at legal copies; Card text and stats for the 8 Fusion Spells, Gem-Knight bosses and board breakers; Composition: 8 Fusion Spells, 9 Gem-Knight Main Deck monsters, 11 Fusion Extra Deck monsters
• Inferred: P(at least one Fusion Spell in opening 5) ≈ 0.69 (hypergeometric); Going-first and going-second plans from card text; Interaction and board-breaker quality from card text
• Provisional: Meta Power (null); Matchup fit (D13 = 50)
• 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 absent no win-rate telemetry; going-first, going-second, matchup and brick rates are Inferred or Unknown Meta Power is Provisional unless a dated metagame sample is supplied no side deck exists in Master Duel, so D12 cannot use post-side data