Sacred Beast Deck #445185 — Yu-Gi-Oh! Master Duel

Deck — Deck Power Evaluation

Final Contextual Deck Power: 35/100 (±8 · Confidence: Medium)

• Primary strategy: Midrange
• Secondary strategies: Graveyard-centric, Toolbox
• Format: master-duel

Legality

Main 44 / Extra 15 / Side 0 — status under the rules at evaluation time: Illegal. 3 violation(s).

Identity & game plan

• Win condition: Establish layered board with Yubel monsters and Fiendsmith Fusion summons for interaction and grind; stall with damage reduction until lethal; Going-second board break via removal effects and hand traps, pivot to midrange grind
• Turn 1 (going first): Open Yubel searcher or Fiendsmith engine to build interaction board; search Sacred Beasts or effects that maintain control
• Turn 2 (going second): Use hand traps (Ash, Infinite Impermanence, Ghost Belle) to disrupt opponent setup; leverage Gruesome Grave Squirmer and Bystial Druiswurm for removal
• Recovery: Exploit Yubel recursion from GY and Nightmare Throne to maintain resource loop; use Fiendsmith tutors to rebuild after disruption
• After siding: No side deck provided (Master Duel best-of-1 format); structural remains identical

Why it scores here

This Sacred Beast hybrid deck is illegal in Master Duel due to three banlist violations (Maxx C ×2, Called by the Grave ×2, Beatrice Forbidden). Evaluated structurally only: the deck attempts a Yubel + Fiendsmith midrange engine with substantial hand-trap and removal tech, but suffers from inconsistent archetype core presence (only 6.8% exact-name Sacred Beasts vs 24% meta core inclusion), forcing reliance on adjacent engines. Opening consistency is moderate—the core Yubel searchers/extenders open ~65% of the time—but medium-power boards due to limited negation density and minimal redundant lines after disruption. The deck has reasonable grind game and going-second removal coverage, but struggles with tempo pressure and lacks a cohesive offensive payoff. Scoring reflects a theoretically-playable midrange skeleton undermined by legal violations, thin archetype commitment, and low combo ceiling.

Dimension scores

How the score was computed

Strategy profile: Midrange. Structural ≈ 46, Going First ≈ 50, Going Second ≈ 48, Meta = provisional, Tournament Reliability ≈ 22. Modifiers: Banlist Illegality Penalty (-11); Low Archetype Core Commitment (-2); Lack of Combo Corpus (-1). Final formula: 0.70*Structural + 0.30*TournamentReliability (Meta provisional; illegality modifier −11 applied)

Probability & combo summary

• Opening a starter: P(≥1) ≈ 0.65 · key two-card combo ≈ 0.38 · full-brick estimate ≈ 0.22 (all Inferred)
• Combo output: best PowerIndex —, median —, board-per-starter —
• Turn order: 0 going-first lines vs 0 going-second lines

Strengths

• Substantial hand-trap density (9 copies across 6 distinct cards) provides going-second disruption and adaptation
• Yubel recursion engine + Nightmare Pain loop supports grind-game resource economy and recovery after disruption
• Fiendsmith Fusion bridge (Engraver + Lacrima + Desirae) offers multi-route board assembly and flexibility
• 17 searcher-text cards create redundant access to core pieces (Nightmare Throne, Opening of the Spirit Gates, Fiendsmith's Tract)
• Extra Deck utility high: 8 Link monsters provide multiple interaction vectors (Underworld Goddess negation, Unchained Soul tutors, Fiendsmith equips)

Weaknesses

• ILLEGAL: Three banlist violations (Maxx C ×2, Called by Grave ×2, Beatrice Forbidden) make deck unplayable in Master Duel
• Archetype core severely diluted—only 24% of meta Sacred Beast core present; heavy reliance on adjacent engines (Fiendsmith, Yubel, Unchained) splits consistency
• Medium board power—interaction density limited; typical end-board has 1–2 interaction pieces, not 3+; lacks hard negation or omni-negate
• Limited offensive payoff—no direct damage, piercing, or OTK line; closing power slow; typical game length 3+ turns
• Single-choke-point dependency on Yubel or Fiendsmith opener; if disrupted early, deck falls back to grind pieces only
• 44 cards with 16 one-copy slots creates hand redundancy; multiple Normal Summon choices (Dark Beckoning Beast vs Fiendsmith Engraver) induce draw variance
• No post-side adaptability (Master Duel best-of-1); structural weakness remains fixed across all games

Critical choke points

• Maxx C illegality removes turn-1 draw engine; Called by Grave illegality removes GY negation answer; Beatrice ban removes Rank-6 Xyz utility
• Yubel searcher (Samsara D Lotus or Dark Beckoning Beast) is the primary T1 consistency anchor—if hand lacks both, deck is forced into grind/stall mode
• Fiendsmith Engraver tutor is secondary consistency line but requires exact copy construction; only 2 copies in deck
• No independent combo line that generates 3+ negations or board protection on its own; deck relies on accumulated interaction pieces
• Going-second into established multi-negation board: deck has removal coverage but limited board-breaker chaining

Recommended changes

Evidence & confidence

• Verified: Legality: Illegal (Maxx C ×2 over limit, Called by Grave ×2 over limit, Beatrice Forbidden); Main/Extra/Side counts: 44 / 15 / 0 (all within format rules except violations); Card text: All 29 main-deck and 14 extra-deck card descriptions resolved from official rulings; Archetype composition: Sacred Beast (exact name) 6.8%, Fiendsmith 11.3%, Yubel 8.1%, generic 42.7%; Hand-trap density: 9 copies (Ash, Infinite Impermanence, Ghost Belle, Droll, Mulcharmy line, Maxx C, Effect Veiler); Searcher-text count: 17 cards with explicit tutoring effects (Nightmare Pain, Opening of the Spirit Gates, Dark Beckoning Beast, Fiendsmith Engraver, Fiendsmith's Tract, etc.); Removal-text count: 20 cards with explicit removal effects (Gruesome Grave Squirmer, Bystial Druiswurm, Yubel chain, Fiendsmith Desirae, etc.); Extra Deck breakdown: 4 Fusion, 8 Link, 3 XYZ (Verified)
• Observed: Archetype core card inclusion: 5 of 21 meta-core cards present (Effect Veiler, Infinite Impermanence, Opening of the Spirit Gates, Ash Blossom, Dark Beckoning Beast); Usage statistics show meta-core at 100% inclusion for these 5 cards; typical 3-copy runs; this deck runs 1–2 copies (Observed)
• Inferred: P(≥1 core Yubel searcher in hand 5) ≈ 0.65; based on 3 Samsara D Lotus + 3 Spirit of Yubel + 2 Dark Beckoning Beast hypergeometric draw; Opening-hand brick rate ~22%; estimated from 16 one-copy dead cards and inflexible Normal Summon slots; Best combo ceiling: Samsara search Yubel → Nightmare Pain loop → Fiendsmith Engraver summon chain ≈ 2–3 summons + 1–2 negations; no parsed boards available for verification; Median board power: typical T1 result is 1 Yubel + 1 Fiendsmith boss or 1 interaction piece; ceiling ~2–3 negate effects across field if all pieces resolve; Going-first power ~50: moderate board with grind-game resilience; lacks hard omni-negate or multi-negate lock; Going-second power ~48: hand traps + removal coverage adequate but not overwhelming; board breaker chaining limited; Tournament reliability ~22: reduced from 60+ due to banlist illegality rendering deck ineligible; if made legal, TR would rise to ~55; Engine coherence: Yubel and Fiendsmith are compatible (both Fiend, both search/tutor, both GY-centric) but deck dilutes both with 76% off-archetype cards; Pilotability: low-to-medium complexity; 1–2 decision points per opener; error tolerance moderate if illegality issue fixed
• Provisional: Meta Power: null—no dated Master Duel metagame sample supplied; archetype meta-share unavailable; Matchup coverage: Unable to assess without top-deck meta breakdown; Sacred Beast is niche; Fiendsmith is mid-tier; no explicit matchup plan in guides; Post-side plan: Master Duel best-of-1 format; no side deck provided; structural weakness cannot be addressed
• Data gaps: No combo boards parsed—all combo floor/median/ceiling scores are text-only inferred, not observed from real games No tournament link—archetype meta-share, per-pilot match record, and format-wide win-rate data absent No win-rate telemetry (brick rate, starter success rate, going-first vs going-second split, matchup outcomes)—all consistency estimates are hypergeometric only No guides for Sacred Beast hybrid archetype—only card text rules apply Banlist illegality makes structural evaluation theoretical; no actual gameplay data available for this list Master Duel best-of-1 format means no side-deck adaptation possible; post-side plan cannot be assessed