Sacred Beast Deck #428237 — Yu-Gi-Oh! Master Duel

Deck — Deck Power Evaluation

Final Contextual Deck Power: 35/100 (±10 · Confidence: Low)

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

Legality

Main 40 / Extra 15 / Side 0 — status under the rules at evaluation time: Illegal. 2 violation(s).

Identity & game plan

• Win condition: Extra-Deck finishers (Underworld Goddess of the Closed World, Varudras, Chaos Angel, Fiendsmith's Desirae) reached through Yubel and Fiendsmith link/fusion material (Inferred from card text; no recorded boards); Yubel - The Loving Defender Forever and Phantom of Yubel pressure, with Yubel recursion from the GY (Inferred)
• Turn 1 (going first): Open on a Yubel or Samsara starter (3 copies each, P(>=1 in 5 cards) about 0.34), search via Nightmare Throne or Fiendsmith's Tract, then extend through Fiend link/fusion summons (Inferred)
• Turn 2 (going second): Use the 7 hand traps and negation text (Ash Blossom, Effect Veiler, Ghost Belle, Skull Meister, Infinite Impermanence, Ghost Mourner) to slow the opponent, then rebuild through Yubel recursion (Inferred)
• Recovery: Mature Chronicle, Spirit of Yubel's on-destroy revival, and Eternal Favorite recycle Yubel monsters from the GY and banishment (Inferred from card text)
• After siding: None: the deck has no side deck (Side Deck size 0), so no post-side adaptation is available

Why it scores here

The deck is a Yubel-centred Fiend build with a legal 40/15/0 size and 19 searcher-text cards, so it can usually find a starter, but the starter odds are modest (about 0.34 for the 3-copy starters in a 5-card hand). Its interaction package (7 hand traps, 8 negation-text cards, Infinite Impermanence, Ash Blossom, Effect Veiler) is the strongest part of the system and drives the highest sub-score. Ceiling and median output cannot be measured because no boards were recorded, so those scores are text-based and provisional. The score is not an average of card scores, and Sacred Beast popularity did not earn points: only 3 of 25 usage-core cards are present and exact-name purity is 5.5%. Two Forbidden cards (Called by the Grave and Apollousa) make the list illegal, so the score is capped and is theoretical and structural only.

Dimension scores

How the score was computed

Strategy profile: Midrange profile (primary); Control noted as secondary, not blended into weights. Structural ≈ 55, Going First ≈ 55, Going Second ≈ 55, Meta = provisional, Tournament Reliability ≈ 52. Modifiers: banlist exposure (-8); engine conflicts (-4). Final formula: Illegal cap: 0.80*Structural(55) + 0.20*TournamentReliability(52) + modifiers(-12) = 42, capped to 35 for an illegal list. Theoretical/structural-only; Meta Power provisional (null).

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

• Dense searcher text (19 cards) and a 0.97 chance of at least one searcher in the opening hand
• Strong interaction package: 7 hand traps and 8 negation-text cards
• Recursion network through Yubel monsters, Mature Chronicle and Eternal Favorite
• High-ATK Extra-Deck finishers (Chaos Angel 3500, Underworld Goddess 3000, Varudras 3000)

Weaknesses

• Illegal list: Called by the Grave and Apollousa are Forbidden
• No side deck, so no best-of-3 adaptation
• Mixed engines (Yubel, Fiendsmith, Bystial, Unchained, Phantom Knights) with low exact-name purity (5.5%)
• Starter density is modest: 3-copy starters are only about 0.34 likely in a 5-card hand

Critical choke points

• Spirit of Yubel and Samsara D Lotus as the only 3-copy starters (about 0.34 in opening 5)
• Yubel monsters as the shared material and recursion source across lines
• Legality: both Forbidden cards must be removed before the deck is playable

Recommended changes

Evidence & confidence

• Verified: Illegal status: Called by the Grave and Apollousa are Forbidden with 0 legal copies; Main 40 / Extra 15 / Side 0 sizes are within master-duel size_rules; Exact-name archetype purity 5.5% and 3 of 25 usage-core cards present
• Inferred: P(>=1 starter in opening 5) = 0.3376 for 3-copy starters (hypergeometric); Interaction density from hand-trap and negation text (7 hand traps, 8 negation-text cards); Recursion and engine conflicts from card text
• Provisional: Median and ceiling output (no recorded boards); Matchup and format fit (no tournament context); Post-side adaptability (no side deck)
• Data gaps: no combos supplied: combo floor/median/ceiling is text-only inference no tournament link: archetype meta-share and per-pilot match record absent no win-rate telemetry (going-first/second, matchup, brick/starter rates) in YGOVN Meta Power is provisional unless a dated metagame sample is supplied no side deck: post-side plan cannot be evaluated