Umbral Horror Deck #772387 — Yu-Gi-Oh! OCG

Deck — Deck Power Evaluation

Final Contextual Deck Power: 30/100 (±10 · Confidence: Low)

• Primary strategy: Midrange
• Secondary strategies: Toolbox, Xyz
• Format: ocg

Legality

Main 55 / Extra 15 / Side 0 — status under the rules at evaluation time: Illegal. 2 violation(s).

Identity & game plan

• Win condition: Extra-Deck boss monsters (K9-X "Werewolf" 3300 ATK, Divine Arsenal AA-ZEUS 3000 ATK, Number C104 3000 ATK) reached through Clown Crew and K9 summon routes (Inferred from card text; no recorded boards); Pendulum/Ritual/Tribute-Summon Clown Crew beaters and link/synchro pressure (Clown Crew Dristy, Clown Crew Biancaviso, Clown Crew Meteor) (Inferred)
• Turn 1 (going first): Search into a Clown Crew or K9 starter (Clown Crew Rehearsal, Chaotic Elements, Preparation of Rites, "A Case for K9"), then Normal Summon or Pendulum-summon into an Xyz boss (Inferred)
• Turn 2 (going second): Open with the hand traps (Ash Blossom x3, Nibiru x3) to stop the opponent's starter, then rebuild through the searchers; P(>=1 hand trap in a 6-card hand) = 0.52 (Inferred)
• Recovery: Searcher density (18 copies, P(>=1 in 5 cards) = 0.87) plus graveyard recursion (Clown Crew Malabarisme, Clown Crew New Face, Mulcharmy Fuwalos) (Inferred)
• After siding: None. The deck runs zero Side Deck cards, so there is no post-side plan (Verified: side_count = 0).

Why it scores here

The deck reliably finds its searchers (18 copies, P(at least one in a 5-card opening hand) = 0.87), so it usually reaches a Clown Crew or K9 starter, and graveyard recursion helps it recover across turns (Inferred). Interaction is dense: 6 hand traps, 9 negation-text cards and 20 removal-text cards give it layered answers (Verified text, Inferred quality). Its closing power comes from Extra-Deck bosses such as K9-X "Werewolf" and Number C104, but no recorded boards exist, so the conversion and floor scores are text-only estimates. The list is Illegal (Ash Blossom and K9-17 Izuna at 3 copies against a limit of 2), it has no Side Deck, and the Umbral Horror label does not match the cards (exact archetype purity 0%; 2 of 13 core cards present). The score is capped at 30 as theoretical only. Archetype popularity and card-level scores were not averaged or used to raise it.

Dimension scores

How the score was computed

Strategy profile: Midrange. Structural ≈ 55, Going First ≈ 52, Going Second ≈ 50, Meta = provisional, Tournament Reliability ≈ 49. Modifiers: banlist exposure (-8); engine conflicts (-4). Final formula: No reliable metagame: 0.80*Structural + 0.20*TournamentReliability = 0.80*55 + 0.20*49 = 54; modifiers -12 give 42; the deck is Illegal, so it is capped to 30 and labelled theoretical/structural-only

Probability & combo summary

• Opening a starter: P(≥1) ≈ — · 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

• Searcher density: 18 searcher-text copies give P(>=1 in a 5-card hand) = 0.87
• Six hand traps (Ash Blossom x3, Nibiru x3) plus Solemn Strike and Lightning Storm give layered interaction
• Extra Deck carries high-ATK bosses (K9-X Werewolf 3300, ZEUS 3000, Number C104 3000)

Weaknesses

• Illegal list: Ash Blossom and K9-17 Izuna at 3 copies against a limit of 2
• No Side Deck, so no post-side adaptation
• Archetype label Umbral Horror does not match the cards: 0% exact purity and 2 of 13 core cards present
• No recorded combo boards, so floor and median are unknown
• Seven singleton main slots dilute consistency

Critical choke points

• Legality: one Ash Blossom and one K9-17 Izuna must come out before the deck can be scored normally
• Hand-trap dependence: six hand traps cover going-second interaction, and no fallback exists if they are dead
• Limited K9 cards (A Case for K9, K9-66a Jokul) are singletons, so their searches are unrepeatable

Recommended changes

Evidence & confidence

• Verified: Legality: Ash Blossom and K9-17 Izuna at 3 copies vs a limit of 2 (Semi-Limited); Main 55 / Extra 15 / Side 0; Extra 15 is within the 15 maximum; Searcher-text count 18, hand-trap count 6, negation-text 9, removal-text 20; Usage: 2 of 13 archetype core cards present (15.4%)
• Inferred: Consistency: P(>=1 searcher in 5) = 0.87 and the hypergeometric estimates on the core engine; Interaction quality and going-second hand-trap coverage (P(>=1 hand trap in 6) = 0.52); Boss ceilings and summon routes from card text only; Structural score 55 and the dimension scores
• Provisional: Meta Power and matchup fit (no dated metagame sample; tournament_context unavailable); Floor and median output (no recorded boards)
• Data gaps: No combos supplied: floor, median and ceiling are text-only inference No tournament link: archetype meta-share and per-pilot match record are absent No win-rate telemetry exists in YGOVN for this deck Meta Power is provisional unless a dated metagame sample is supplied Deck title is null and the archetype label (Umbral Horror) does not match the cards played