Gem-Knights Deck #768324 — Yu-Gi-Oh! OCG

Deck — Deck Power Evaluation

Final Contextual Deck Power: 25/100 (±10 · Confidence: Low)

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

Legality

Main 56 / Extra 14 / Side 0 — status under the rules at evaluation time: Illegal. 1 violation(s).

Identity & game plan

• Win condition: Gem-Knight Fusion monsters (Lady Brilliant Diamond ATK 3400, Master Diamond ATK 2900+) summoned through Fusion spells and Gem-Knight searchers; Gem-Knight Master Diamond Dispersion and Gem-Knight Topaz pressure; Lady Rose Diamond board protection
• Turn 1 (going first): Search a Gem-Knight with Gem-Armadillo or Nepyrim, then Fusion Summon via Gem-Knight Dispersion or Gem-Knight Fusion while holding hand traps for the opponent's first interaction
• Turn 2 (going second): Hold Ash Blossom, Effect Veiler, Maxx C, Nibiru, and Infinite Impermanence against the opponent's first interaction, then convert the surviving board into Fusion pressure
• Recovery: Recover Gem-Knight Fusion from the GY (banish 1 Gem-Knight), re-run the searchers, and use Gem-Knight Quartz and Phantom Quartz to refill hand
• After siding: No side deck is registered, so there is no post-side plan to evaluate

Why it scores here

This deck is Illegal: it runs one copy of Fossil Dyna Pachycephalo, which is Forbidden in OCG, so it receives a theoretical, structural-only read and its score is capped at 25 rather than given a normal Final Contextual score. Its reliable strengths are the disruption suite (14 negation-text cards, 20 removal-text cards, Ash Blossom x2, Effect Veiler x3, Infinite Impermanence x3, Maxx "C", Red Reboot), which gives it a strong going-second hand (P(at least one hand trap in 6) ≈ 0.84 Inferred) and resilient interaction on the system. Its engine is only partly coherent: searchers and Fusion enablers (Dispersion, Fusion, Brilliant Fusion, Super Polymerization) feed a Gem-Knight Extra Deck, but three Shaddoll Fusion copies have only two Shaddoll monsters in the main deck, and the Shaddoll and Gem-Knight shells conflict. Consistency is only moderate: P(at least one copy of a 3-copy starter in the opening 5) ≈ 0.25 (Inferred) and there are no recorded boards, so combo floor and median cannot be measured. Score was not lifted by Gem-Knights' popularity or by averaging card scores; there is no tournament, meta, or win-rate evidence.

Dimension scores

How the score was computed

Strategy profile: Midrange. Structural ≈ 55, Going First ≈ 50, Going Second ≈ 65, Meta = provisional, Tournament Reliability ≈ 45. Modifiers: banlist exposure (-8); engine conflict (-4). Final formula: Illegal deck: theoretical/structural-only. Uncapped 0.80*55 + 0.20*45 = 53, after context modifiers -12 gives 41, capped at 25 for Illegal status. Meta Power is null (Provisional).

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

• Dense disruption: 14 negation-text cards and 20 removal-text cards, with 3 copies of Effect Veiler and Infinite Impermanence and 2 of Ash Blossom
• Strong going-second hand: P(≥1 hand trap in 6) ≈ 0.84 (Inferred)
• Searcher density (12 searcher-text cards) gives good access to Gem-Knight monsters
• Deep Extra Deck: 12 Fusion and 2 Link monsters with multiple high-ATK closers

Weaknesses

• Illegal list: Fossil Dyna Pachycephalo (Forbidden) is run
• No side deck (side_count 0)
• Shaddoll Fusion x3 has only two Shaddoll main-deck monsters to use as material
• Several Normal-monster and tech cards are dead without specific targets
• No recorded combos, so floor and median output are unmeasured

Critical choke points

• Fusion Summon enablers (Dispersion x3, Super Polymerization x2, Fusion x1, Brilliant Fusion x1) are the only route to the Extra Deck
• One Limited copy each of Gem-Knight Fusion and Gem-Knight Master Diamond, so their loss is unrecoverable

Recommended changes

Evidence & confidence

• Verified: Illegal status: Fossil Dyna Pachycephalo (Forbidden, 1 copy run); Main 56 and Extra 14 are within size rules; side 0 is legal; Card text and stats for all resolved cards; Copy counts for restricted cards are within legal limits otherwise
• Observed: Usage stats show 17 rows for Gem-Knights, core threshold 50%
• Inferred: Opening-hand probabilities (hypergeometric); Going-first and going-second estimates; Engine conflict and brick estimates from text and composition; Midrange strategy classification
• Provisional: Meta Power (null, no dated metagame sample); Matchup and format-fit scores
• Data gaps: Illegal list (Forbidden card present); no normal Final Contextual score can be given No combos supplied: floor, median, and ceiling are text-only inference No tournament link: archetype meta-share and per-pilot record absent No side deck registered (side_count 0), so D12 is unmeasured usage_statistics conflicts with the card list: Gem-Knight Phantom Quartz, Seraphinite, Aquamarine, Master Diamond Dispersion, Prismaura, and Lady Rose Diamond are in the Extra Deck (copies 1-2) but flagged in_this_deck=false with copies_in_deck 0; core_present_pct 23.1 is not trusted One passcode (20366274) in CardIDList is unresolved and counted as main; its function is unknown No win-rate telemetry exists in YGOVN