Gem-Knights Deck #771884 — Yu-Gi-Oh! OCG

Deck — Deck Power Evaluation

Final Contextual Deck Power: 30/100 (±8 · Confidence: Low)

• Primary strategy: Midrange
• Secondary strategies: Stun, Fusion
• Format: ocg

Legality

Main 55 / Extra 15 / Side 0 — status under the rules at evaluation time: Illegal. 1 violation(s).

Identity & game plan

• Win condition: Fusion Summon Gem-Knight boss monsters (Lady Brilliant Diamond 3400 ATK, Master Diamond, Prismaura) through Fusion starters and hand traps that protect the engine; Gem-Knight Lady Rose Diamond and Light Dragon @Ignister board control and removal
• Turn 1 (going first): Open a Fusion starter (Gem-Knight Dispersion, Gem-Knight Fusion, Brilliant Fusion or Scatter Fusion) with a Gem-Knight material, search with Nepyrim or Quartz, and build a Fusion boss while holding Ash Blossom, Ghost Ogre or Effect Veiler for the opponent's response
• Turn 2 (going second): Hold 13 hand traps in a six-card hand to stop the opponent's starter, then use the remaining hand and GY recursion to rebuild a Fusion boss
• Recovery: Banish Gem-Knight monsters from the GY to add Gem-Knight Fusion back to hand (text only, Inferred), and rebuild through Gem-Armadillo and Nepyrim searches
• After siding: No Side Deck is registered, so there is no post-side plan; the deck cannot be adjusted between games

Why it scores here

The deck reliably opens a Gem-Knight Fusion starter in about 83 percent of opening hands from its 16-card archetype core (hypergeometric, Inferred), and the Gem-Knight searchers keep the engine live into turn two. Interaction is the strongest part of the system: 13 hand traps and about 16 removal or negation texts give a going-second hand a roughly 82 percent chance of holding at least one hand trap, which is why the deck scores in the high 60s for going-second board-breaking and end-board interaction. Its ceiling is a Fusion boss such as Lady Brilliant Diamond, but there are no recorded boards, so the floor and median are text-only inference and are scored low. Popularity did not earn points: the archetype stats show only 53 percent of the core present, and the deck was not averaged from card scores. The illegal Ash Blossom copy count and the missing Side Deck cap the final score at 30 regardless of the structural read.

Dimension scores

How the score was computed

Strategy profile: Midrange 100 with Stun context noted; no separate blend weights applied. Structural ≈ 58, Going First ≈ 64, Going Second ≈ 66, Meta = provisional, Tournament Reliability ≈ 46. Modifiers: banlist exposure: Ash Blossom over copy limit (-12); no side deck (-3); illegal cap (-11). Final formula: No reliable metagame: 0.80*Structural + 0.20*TournamentReliability gives 0.80*58 + 0.20*46 = 55.6 before modifiers; modifiers -15 gives 41; Illegal cap sets final to 30 (theoretical/structural only)

Probability & combo summary

• Opening a starter: P(≥1) ≈ 0.25 · 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

• Core starters are redundant: archetype core open about 83 percent of hands (Inferred)
• Large hand-trap and removal suite (13 hand traps, 16 removal texts) gives strong going-second interaction (Inferred)
• Gem-Knight Fusion GY recovery and searchers provide recursion (Inferred)
• Fusion boss ceiling with high ATK in Lady Brilliant Diamond and Master Diamond (verified stats)

Weaknesses

• Illegal as built: three Ash Blossom copies exceed the Semi-Limited limit of two (verified)
• No Side Deck, so no post-side adaptability (verified)
• Many dead-in-hand tech and conditional Mulcharmy cards (Inferred)
• No combo or tournament data, so consistency and floor are inferred only (verified gap)

Critical choke points

• Fusion material availability: fusion boss lines need Gem-Knight monsters in hand or field
• Single Gem-Knight Fusion and Brilliant Fusion copies in the search chain
• Ash Blossom over-limit makes the list unplayable in sanctioned OCG events

Recommended changes

Evidence & confidence

• Verified: Legality: Ash Blossom & Joyous Spring at 3 copies vs Semi-Limited limit 2 (Illegal); Main 55, Extra 15, Side 0 counts and size rules; Card text and banlist status for each card; Archetype core 16 cards, 8 of 15 core cards present (53.3 percent)
• Inferred: Starter probability 0.83 for the archetype core; Hand-trap probability 0.82 going second; All interaction and recursion scores from card text; Structural score 58 and tournament reliability 46 from dimension scores
• Provisional: Meta power (no dated meta sample); Matchup coverage and format fit (no tournament link)
• Data gaps: No combos supplied, so combo floor, median and ceiling are text-only inference No tournament link, so archetype meta-share and per-pilot match records are absent No win-rate telemetry exists in YGOVN for going-first, going-second, matchup or brick rates Meta power is provisional unless a dated metagame sample is supplied Deck title is null in the export No guides attached to the archetype