Umbral Horror Deck #769653 — Yu-Gi-Oh! OCG
40 Main, 15 Extra, incl. Lava Golem x3, Rescue-ACE Impulse x3, Spellbook Magician of Prophecy x3. Created Oct 20, 2026 by YGO Mod.
Created by: YGO Mod (20517634)
Created On: 10/20/2026
Main Deck (40)
- Aussa the Earth Channeler x1
- Awakening of the Possessed - Gagigobyte x1
- Eria the Water Channeler x1
- Hiita the Fire Channeler x1
- K9-66a Jokul x1
- K9-66b Lantern x2
- K9-ØØ Lupis x1
- Lava Golem x3
- Rescue-ACE Fire Attacker x1
- Rescue-ACE Impulse x3
- Spellbook Magician of Prophecy x3
- Spiritual Art Familiars x1
- Wynn the Wind Channeler x1
- Dharc the Dark Charmer x1
- "A Case for K9" x1
- Chaotic Elements x3
- Grand Spiritual Art - Ichirin x1
- K9-X Forced Release x1
- Pair Bear Scare!! x2
- Possessed Destiny x1
- Spellbook of Knowledge x1
- Spellbook of Secrets x3
- Spellbook of the Grand Circle x3
- Spiritual Power Recovery Potion x1
- Possessed Partnerships x1
- Spiritual Water Art - Aoi x1
Extra Deck (15)
- Charmers of the Grand Circle x3
- Possessed Destiny - Wynn x1
- Artifact Durendal x1
- CXyz N.As.Ch. Knight x1
- Imperial Princess Quinquery x1
- K9-17 "Ripper" x1
- K9-66X "Jacks" x1
- K9-ØØ "Hound" x1
- N.As.H. Knight x1
- Number 104: Masquerade x1
- Number 21: Frozen Lady Justice x1
- Number C104: Umbral Horror Masquerade x1
- Vallon, the Super Psy Skyblaster x1
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41± 8/ 100
Power Score
Structural
47
Reliability
40
Going First
45
Going Second
42
Deck — Deck Power Evaluation
Final Contextual Deck Power: 41/100 (±8 · Confidence: Medium)
| Overall score | Value |
|---|---|
| Structural Deck Power | 47 |
| Going First | 45 |
| Going Second | 42 |
| Meta Power | provisional |
| Tournament Reliability | 40 |
- Primary strategy: Toolbox
- Secondary strategies: Midrange, Xyz
- Format: ocg
Legality
Main 40 / Extra 15 / Side 0 — status: Legal.
Identity & game plan
- Win condition: Level-5 Xyz boss pressure (Number C104: Umbral Horror Masquerade 3000 ATK, Jacks 2600, Hound 2500, Vallon 2500) built through searcher-driven Level-5 material chains; Charmer fusions (3x Charmers of the Grand Circle) and Tribute-summoned Lava Golem (3000 ATK) as alternate boards
- Turn 1 (going first): Search a Spellbook or K9 starter, go to Xyz or Fusion with Level-5 monsters, and use Masquerade or K9 effects to protect the board
- Turn 2 (going second): No hand traps are run, so the going-second plan depends on a single removal or negation effect (Spellbook of the Grand Circle, Spiritual Art Ichirin, Possessed Destiny) before the Xyz boss lands
- Recovery: Searchers (23 copies with search text) and Spellbook of Knowledge recover hand, and Xyz materials are re-used through K9 and Quinquery effects
- After siding: No side deck is registered, so there is no post-side plan
Why it scores here
The deck reliably opens searcher-based starts: 23 copies carry search text and the 99% probability of at least one searcher in an opening five is the main consistency source, though the 3-copy starters (Spellbook of the Grand Circle, Spellbook Magician of Prophecy, Chaotic Elements, Rescue-ACE Impulse) are only about 34% likely to appear going first. Conversion is the weak point: no recorded boards exist, so the ceiling and median are text-only inferences and the Xyz boss pressure is the only verified closing tool. Interaction is thin for OCG, with no hand traps and no core staples (0 of 13 usage-core cards present, including Ash Blossom and Mulcharmy Fuwalos), and the deck runs no side deck. The score comes from consistency, closing stats and Extra Deck coverage on the system, not from Umbral Horror being a named archetype, and not from averaging the individual card scores; the exact-name archetype purity is only 1.8%, so the engines are split across six sub-archetypes.
Dimension scores
| # | Dimension | Score | Evidence |
|---|---|---|---|
| D1 | Engine Accessibility & Consistency | 58 | P(at least one 3-copy starter in 5) = 0.34 going first, 0.39 going second; searcher text group P(>=1 in 5) = 0.99 (Inferred) |
| D2 | Opening-Hand Quality & Brick Management | 45 | No hand traps and six sub-archetype engines (Spellbook, K9, Charmer, Possessed, Rescue-ACE, Familiar-Possessed) make many opening hands partly dead (Inferred) |
| D3 | Combo Conversion & Ceiling | 40 | No recorded boards; Charmer fusion and K9 Xyz chains are text-readable, but the ceiling is not measured (Inferred) |
| D4 | Combo Floor & Median Output | 35 | No recorded boards, so the median output is unknown; median is not estimated from the evidence (Inferred) |
| D5 | Interruption Resilience & Route Redundancy | 50 | Several independent starter families and searchers give alternate lines, but there are no hand traps to answer disruption (Inferred) |
| D6 | Resource Economy, Recovery & Grind | 50 | Spellbook of Knowledge and multiple searchers recover hand; Xyz materials can be re-used via K9 and Quinquery text (Inferred) |
| D7 | End-Board & Interaction Quality | 40 | Removal text on 13 cards and negation text on 3 cards (Spiritual Art Ichirin, Masquerade, K9-17 Ripper), but no hand traps and no floodgates (Verified text, Inferred quality) |
| D8 | Going-Second & Board-Breaking Power | 40 | Going-second removal limited to Spellbook of the Grand Circle, Possessed Destiny and Possessed Partnerships; no hand traps to meet the board (Inferred) |
| D9 | Offensive Pressure & Closing Power | 55 | Boss ATK verified: Number C104 3000, Lava Golem 3000, Jacks 2600, Hound 2500, Vallon 2500 (Verified stat) |
| D10 | Main Deck Efficiency & Flexibility | 55 | 40 main with 26 distinct names, 18 single copies and 6 cards at 3 copies; 19 Level-0 spells and traps keep it flexible but diffuse (Verified composition) |
| D11 | Extra Deck Efficiency & Coverage | 60 | 11 Xyz and 4 Fusion in 15 slots, with Level-5 bodies across the main; no Extra Deck overflow and broad material coverage (Verified composition, Inferred coverage) |
| D12 | Side Deck Adaptability | 30 | No side deck registered (side 0 of 15 allowed); no post-side plan can be scored (Verified gap) |
| D13 | Matchup Coverage & Format Fit | 35 | 0 of 13 usage-core cards present, including Ash Blossom & Joyous Spring (81%) and Mulcharmy Fuwalos (85%); no tournament link so meta fit is Provisional (Verified usage stat, Provisional meta) |
| D14 | Pilotability & Error Tolerance | 50 | Three engine families and two summon types require several decision points per turn (Inferred) |
How the score was computed
Strategy profile: Toolbox. Structural ≈ 47, Going First ≈ 45, Going Second ≈ 42, Meta = provisional, Tournament Reliability ≈ 40. Modifiers: core_staple_absence (-3); no_sideboard (-2). Final formula: 0.80*Structural + 0.20*TournamentReliability (Meta provisional) + ContextModifiers = 0.80*47 + 0.20*40 - 5 = 40.6, rounded to 41
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
- Searcher density (23 cards) makes the starter almost always reachable
- Verified high-ATK Xyz bosses for closing (Number C104 3000, Jacks 2600, Hound 2500, Vallon 2500)
- Extra Deck of 11 Xyz and 4 Fusion covers many Level-5 material routes
Weaknesses
- Engines are split across six sub-archetypes; exact-name purity is 1.8%
- No hand traps and no core staples (0 of 13 usage-core cards)
- No side deck registered
- No recorded boards, so combo conversion and median output are unmeasured
Critical choke points
- A single Spellbook or K9 starter (3 copies or fewer) is needed to start most lines
- Level-5 material availability for the Xyz bosses depends on a few Level-5 bodies in hand
Recommended changes
| Priority | Remove | Add | Reason |
|---|---|---|---|
| 1 | Spiritual Water Art - Aoi | Ash Blossom & Joyous Spring | Ash Blossom is in 81% of archetype lists (verified usage stat) and the deck has no hand trap; Aoi requires tributing a WATER monster and is a single copy |
| 2 | No card (side deck empty) | A 15-card side deck covering the format's common interaction | Side count is 0 of 15 allowed, so there is no post-side plan for a best-of-3 event |
| 3 | Single-copy sub-archetype cards that the engine does not need | More copies of one core engine (K9 or Charmer) to raise coherence | Consolidating into one main engine would raise D1 and D2 consistency; this is an Inferred recommendation based on the spread shown in archetype_spread |
Evidence & confidence
- Verified: Legal: 40 main, 15 extra, 0 side, OCG BanList; K9-66a Jokul and A Case for K9 at 1 copy each (Limited); Card text and stats for all 40 main and 15 extra cards; Usage stats: 0 of 13 archetype-core cards present
- Inferred: Consistency: P(3-copy starter in 5) = 0.34 going first; searcher group P = 0.99; Brick risk from six sub-archetype engines and no hand traps; Interaction quality and going-second board breaking from removal text
- Provisional: Meta fit: no dated metagame sample; tournament_context unavailable
- 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, going-second, matchup, starter and brick rates are Inferred or Unknown No side deck registered, so no post-side evaluation is possible Meta Power is Provisional without a dated metagame sample
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