Gem-Knights Deck #767009 — Yu-Gi-Oh! OCG

Deck — Deck Power Evaluation

Final Contextual Deck Power: 43/100 (±8 · Confidence: Low)

• Primary strategy: Midrange
• Secondary strategies: Combo
• Format: ocg

Legality

Main 55 / Extra 15 / Side 0 — status: Illegal. 1 violation(s).

Identity & game plan

• Win condition: Fusion-Summoned Gem-Knight boards: Lady Brilliant Diamond (3400 ATK), Gem-Knight Master Diamond and Gem-Knight Prismaura, with Gem-Knight Fusion and Brilliant Fusion / Gem-Knight Dispersion as the enablers.; Hand-trap attrition: Ash Blossom, Infinite Impermanence, Effect Veiler, Ghost Ogre and Ghost Belle stall the opponent's engine while the Gem-Knight Fusion line builds a board.
• Turn 1 (going first): Normal Summon Gem-Armadillo or Gem-Knight Nepyrim to search a Gem-Knight, then use Gem-Knight Dispersion or Fusion to reach a Fusion Monster (unverified line; no combos recorded).
• Turn 2 (going second): Hold 6-card hand with 19 hand-trap/tech cards (P(at least one hand trap in 6) = 0.93 per probability table) and interrupt the opponent's starter, then Fusion Summon from there.
• Recovery: Gem-Knight Fusion recovers from the GY by banishing a Gem-Knight monster; Gem-Knight Quartz and Phantom Quartz add searches; Ghost Belle and Ghost Ogre rebuild from the GY.
• After siding: None: the deck has 0 side cards, so there is no post-side plan.

Why it scores here

The deck reliably opens a searcher line: P(at least one searcher-text card in a 5-card opening hand) is about 0.76, and the archetype core has about a 0.72 chance of at least one copy (Inferred). Its strongest function is interaction, with 19 hand-trap or tech cards and about a 0.93 chance of at least one hand trap in a 6-card going-second hand (Inferred), which earns the interaction and going-second scores. Conversion and median output cannot be measured because the deck has no recorded combos, so those scores rest on text reads and are low-confidence. The deck is also illegal as built (3 copies of Ash Blossom against a limit of 2), so it is capped and scored structurally only. Popularity and archetype share earned no points, and card scores were not averaged.

Dimension scores

How the score was computed

Strategy profile: Midrange. Structural ≈ 56.4, Going First ≈ 55, Going Second ≈ 62, Meta = provisional, Tournament Reliability ≈ 50. Modifiers: Legality (illegal as built) (-12). Final formula: 0.80*Structural + 0.20*TournamentReliability + ContextModifiers (Meta provisional); 0.80*56.4 + 0.20*50 = 55.1, minus 12 legality modifier = 43

Probability & combo summary

• Opening a starter: P(≥1) ≈ 0.76 · 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 hand-trap suite (19 cards) gives strong going-second interaction
• Searcher density (13 cards) makes the engine reliably reachable on turn 1
• Fusion recursion through Gem-Knight Fusion and the Quartz monsters gives multiple recovery routes
• Extra Deck coverage across Fusion, Link and XYZ with single-copy bosses

Weaknesses

• Illegal as built: 3 copies of Ash Blossom against a limit of 2
• No side deck: 0 of 15 side slots used, so no post-side adaptation
• 70 off-archetype copies (Mulcharmy, Greed, Cyclone) dilute the Gem-Knight engine
• No recorded combos, so conversion and median output are unmeasured

Critical choke points

• Gem-Knight Fusion and Brilliant Fusion are each single copies; losing them to hand traps or removal removes the main Fusion route
• Boss monsters are mostly single copies, so a single removal or negation can end the board

Recommended changes

Evidence & confidence

• Verified: Legality: 3 copies of Ash Blossom & Joyous Spring vs OCG limit of 2 (Illegal); Main Deck 55 and Extra Deck 15 are within the OCG size rules; Side Deck 0; Extra Deck breakdown: 11 Fusion, 3 Link, 1 XYZ; Exact-name archetype purity 0%; 70 off-archetype copies
• Inferred: Searcher-text P(>=1 in opening 5) ~0.76; Hand-trap P(>=1 in going-second 6) ~0.93; Structural dimension scores (D1-D14) from card text and probability tables; Going-first and going-second plans from card text
• Provisional: Meta Power (null: no dated metagame sample); Matchup and format fit (D13)
• 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 for going-first/second, matchup, or brick rates Meta Power is Provisional unless a dated metagame sample is supplied Side deck is empty (0 cards); post-side performance is unassessable Deck title is null