Gem-Knights Deck #769728 — Yu-Gi-Oh! OCG
40 Main, 16 Extra, incl. Darklord Djehuty x3, Refrain the Melodious Songstress x3, Gem-Knight Dispersion x3. Created Oct 20, 2026 by YGO Mod.
Created by: YGO Mod (20517634)
Created On: 10/20/2026
Main Deck (40)
- Darklord Djehuty x3
- Darklord Gulgolet x1
- Darklord Ixchel x1
- Darklord Morningstar x1
- Droll & Lock Bird x1
- Gem-Knight Hollowcore x1
- Gem-Knight Nepyrim x2
- Gem-Knight Quartz x1
- Maxx "C" x1
- Couplet the Melodious Songstress x1
- Refrain the Melodious Songstress x3
- Vidolium the Unstable Power Patron of Unity x2
- Ash Blossom & Joyous Spring x2
- Herald of Orange Light x1
- Banishment of the Darklords x2
- Brilliant Fusion x1
- Crossout Designator x1
- Darklord Dance x1
- Foolish Burial x1
- Forbidden Crown x1
- Gem-Knight Dispersion x3
- Gem-Knight Fusion x1
- Melodious Concerto x1
- Ostinato x3
- Prohibited Power Patron Portal - Terminus x1
- Vingolf's Blessing x2
- Darklord Rebellion x1
Extra Deck (16)
- Bacha the Melodious Maestra x1
- Darklord Eveningstar x1
- Flowering Etoile the Melodious Magnificat x1
- Gem-Knight Aquamarine x1
- Gem-Knight Lady Rose Diamond x1
- Gem-Knight Master Diamond Dispersion x1
- Gem-Knight Prismaura x1
- Gem-Knight Seraphinite x1
- The First Darklord x1
- Condemned Darklord x1
- Gem-Knight Phantom Quartz x1
- Herald of Mirage Lights x1
- Mediclius the Extraordinary Power Patron x1
- Purification Power Patron x1
- Saryuja Skull Dread x1
- Zenna's Deceiving Doll Maidens x1
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Deck — Deck Power Evaluation
Final Contextual Deck Power: 20/100 (±6 · Confidence: Low)
| Overall score | Value |
|---|---|
| Structural Deck Power | 42 |
| Going First | 42 |
| Going Second | 38 |
| Meta Power | provisional |
| Tournament Reliability | 35 |
- Primary strategy: Midrange
- Secondary strategies: Toolbox, FTK / Alternate-Win
- Format: ocg
Legality
Main 40 / Extra 16 / Side 0 — status under the rules at evaluation time: Illegal. 2 violation(s).
Identity & game plan
- Win condition: Fusion and Link pressure from Gem-Knight and Darklord Extra Deck monsters, backed by Power Patron and Melodious boss monsters (theoretical, structural read only); Vidolium the Unstable Power Patron of Unity 5000 ATK and Darklord Morningstar / Eveningstar 3000 ATK bodies
- Turn 1 (going first): Open a Gem-Knight searcher with Gem-Knight Dispersion or Gem-Knight Nepyrim, then Fusion Summon from the Extra Deck; hand traps are held for the opponent's turn
- Turn 2 (going second): Ash Blossom, Herald of Orange Light, Maxx C and Droll & Lock Bird as the interaction layer, with Gem-Knight Hollowcore and Quartz as bodies
- Recovery: Gem-Knight Fusion and Brilliant Fusion recur from the GY; Banishment of the Darklords and Darklord Dance refill the hand
- After siding: Not assessable: the list has no Side Deck (0 cards), so there is no post-side plan
Why it scores here
This list is illegal in OCG: it runs one copy of Saryuja Skull Dread, which is Forbidden, and its Extra Deck holds 16 cards against a limit of 15. Under the rubric it therefore gets only a capped, structural-only score. The main deck splits across three sub-archetypes (Gem-, Darklord and Melodious) with no exact-name core, so the engine has several starters but weak cohesion between them. Starter access is reasonable on paper (about 0.34 to open a copy-3 starter in five cards), but the 19 zero-level cards and the 18 spells push brick risk up. No combo boards, tournament link, or side deck were supplied, so the floor, median and ceiling are text-only inferences. Popularity and archetype standing did not earn points, and card scores were not averaged into the deck score.
Dimension scores
| # | Dimension | Score | Evidence |
|---|---|---|---|
| D1 | Engine Accessibility & Consistency | 52 | P(at least one copy-3 starter in opening 5) ≈ 0.34; Gem-Knight Dispersion and Nepyrim are the search and starter core (Inferred) |
| D2 | Opening-Hand Quality & Brick Management | 40 | Heavy spell and zero-level count with multiple sub-archetypes raises dead-card risk; no hand-level data (Inferred) |
| D3 | Combo Conversion & Ceiling | 45 | Ceiling is text-only: Fusion and Link recursion lines are visible in card text, but combos_evidence has 0 parseable boards (Inferred) |
| D4 | Combo Floor & Median Output | 40 | Median output unknown; no recorded boards, so the floor is inferred from starter diversity alone (Inferred) |
| D5 | Interruption Resilience & Route Redundancy | 40 | Two hand traps and several Fusion-recursion lines give some redundancy, but no independent second line is confirmed (Inferred) |
| D6 | Resource Economy, Recovery & Grind | 45 | Recursion via Gem-Knight Fusion and Banishment of the Darklords is present in text; no resource data (Inferred) |
| D7 | End-Board & Interaction Quality | 42 | Five hand traps plus Herald, Mirage Lights and Mediclius negation text; Forbidden Crown adds one-card negation (Inferred) |
| D8 | Going-Second & Board-Breaking Power | 40 | Going-second split unavailable; board-breaking relies on Crossout Designator and Droll-style text read (Inferred) |
| D9 | Offensive Pressure & Closing Power | 50 | Vidolium 5000 ATK, Morningstar and Eveningstar 3000 ATK bodies are real closing threats (Verified card text, Inferred use) |
| D10 | Main Deck Efficiency & Flexibility | 35 | 40 main with 27 distinct cards, 18 spells, 19 zero-level cards and three-of splashes across three archetypes reduce coherence (Verified composition) |
| D11 | Extra Deck Efficiency & Coverage | 50 | Extra Deck is 16 cards, one over the OCG limit, with 9 Fusion and 7 Link monsters that all need specific materials (Verified composition) |
| D12 | Side Deck Adaptability | 10 | No side deck at all, so no post-side adaptability exists (Verified, 0 side cards) |
| D13 | Matchup Coverage & Format Fit | 40 | No tournament link, meta-share or dated sample; format fit is provisional (Provisional) |
| D14 | Pilotability & Error Tolerance | 35 | Multi-archetype engine with several Extra Deck material chains and over-limit legality needs careful play (Inferred) |
How the score was computed
Strategy profile: balanced. Structural ≈ 42, Going First ≈ 42, Going Second ≈ 38, Meta = provisional, Tournament Reliability ≈ 35. Modifiers: Illegal list cap (-8); Banlist exposure (-4). Final formula: Illegal cap: theoretical structural-only. Unclamped 0.80*Structural(42) + 0.20*TournamentReliability(35) = 40.6, with modifiers -12 gives 28.6; capped to 20 because the deck is Illegal (Forbidden card and Extra Deck over limit).
Probability & combo summary
- Opening a starter: P(≥1) ≈ 0.34 · 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 searcher text (20 cards) and a 0.98 chance of at least one searcher in five cards
- Multiple negation and hand-trap options (Ash Blossom, Herald of Orange Light, Maxx C, Droll & Lock Bird, Herald of Mirage Lights)
- High-ATK closers available in the Extra Deck (Vidolium 5000 ATK, Morningstar and Eveningstar 3000 ATK)
Weaknesses
- Illegal list: a Forbidden card and an Extra Deck one over the OCG limit
- Three archetypes with no exact-name core; only 0% exact Gem-Knight purity
- No side deck, so there is no best-of-3 adaptation
- 18 spells and 19 zero-level cards raise brick risk
Critical choke points
- Extra Deck fusion materials, which are mostly one-of cards
- Gem-Knight Fusion and Brilliant Fusion as the single Fusion route
- Forbidden Saryuja Skull Dread must be removed before the list is playable
Recommended changes
| Priority | Remove | Add | Reason |
|---|---|---|---|
| 1 | Saryuja Skull Dread | a legal Link or Fusion monster that uses existing Extra Deck materials | Forbidden in OCG; this is a legality fix, not a power choice. |
| 2 | one Extra Deck monster | nothing (or a Fusion or Link already in the list) | Extra Deck is 16 against a limit of 15; cut one to make the list legal. |
| 3 | one of the three sub-archetype splashes (Melodious or Darklord) | additional copies of Gem-Knight core cards (Dispersion, Nepyrim) | Raises exact-name purity and starter consistency. |
Evidence & confidence
- Verified: Illegal status: Saryuja Skull Dread (Forbidden) run 1 copy; Extra Deck 16 vs OCG limit 15; Main 40 with 27 distinct cards; 18 Spells; 19 zero-level; No side deck (0 cards); Hypergeometric: copy-3 at least one in hand5 = 0.3376
- Inferred: Starter consistency and brick rate; Floor, median and ceiling estimates; Interaction density from card text (5 hand traps, 7 negation texts); Going-second and recovery plans
- Provisional: Meta Power (no dated metagame sample); Matchup fit and format fit
- 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/second, matchup, brick/starter rates) Meta Power is Provisional unless a dated metagame sample is supplied No side deck, so post-side performance cannot be assessed
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