Bystial Deck #677329 — Yu-Gi-Oh! Master Duel

Deck — Deck Power Evaluation

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

• Primary strategy: Combo
• Secondary strategies: Toolbox
• Format: master-duel

Legality

Main 47 / Extra 15 / Side 0 — status under the rules at evaluation time: Illegal. 1 violation(s).

Identity & game plan

• Win condition: Synchro boss pressure: Centur-Ion Legatia, Centur-Ion Auxila, Chaos Angel, Bystial Dis Pater, Stardust Sifr Divine Dragon, Cosmic Blazar Dragon (3000-4000 ATK bodies); Bystial Lubellion and Bystial Magnamhut recursion/search into a Dragon boss chain
• Turn 1 (going first): Turn-1 starter from Bystial Druiswurm, Bystial Saronir, Bystial Baldrake, Junk Meister or Speedroid Terrortop (each 3 copies, all hand-summonable), then Tuner plus Synchro into a 3000+ ATK boss
• Turn 2 (going second): Six-card hand with Ash Blossom and Maxx C as hand traps (4 copies total, about 43% to hold at least one), then engine through the opponent's board using the Bystial hand-summon effects
• Recovery: Banish-based Bystial summons from the GY and Stardust Synchron / Centur-Ion Primera recursion; GY averages 8.7 cards in recorded boards
• After siding: None: the deck runs 0 side cards, so there is no post-side plan and no sideboard adaptation

Why it scores here

The score is capped at 30 because the list is Illegal: Called by the Grave is Forbidden and the deck runs one copy, so the Final Contextual number is structural and theoretical only. On the system, the deck reliably opens a functional plan (about 91% to hit a searcher in a 5-card opening hand, and three-copy starters at about 29% each) and its recorded boards convert into 3000 to 4000 ATK Synchro bosses with a median PowerIndex of 91 and a best line of 100. Interaction density is about 4.2 per board and 4 hand traps (Ash Blossom and Maxx C) support it, while the going-first and going-second split cannot be measured because all 10 recorded combos are tagged unknown. The score does not come from Bystial being a popular archetype (no usage or tournament data exists) and was not produced by averaging the individual card scores; the 21% exact-name purity and mixed Centur-Ion, Stardust, Junk and Roid engines lower the structural result, and the empty side deck leaves no post-side plan.

Dimension scores

How the score was computed

Strategy profile: Combo. Structural ≈ 69, Going First ≈ 66, Going Second ≈ 60, Meta = provisional, Tournament Reliability ≈ 58. Modifiers: banlist exposure (-6); engine conflicts (-3); no side deck (-2). Final formula: Uncapped: 0.80*Structural(69) + 0.20*TournamentReliability(58) + modifiers(-11) = about 56; capped to 30 because the list is Illegal (theoretical/structural-only). Meta Power provisional (null).

Probability & combo summary

• Opening a starter: P(≥1) ≈ 0.29 · key two-card combo ≈ — · full-brick estimate ≈ — (all Inferred)
• Combo output: best PowerIndex 100, median 91, board-per-starter —
• Turn order: 0 going-first lines vs 0 going-second lines

Strengths

• Median recorded PowerIndex 91 with a best line of 100
• Searcher density gives about 91% to find a searcher in a 5-card opening hand
• Multiple 3000 to 4000 ATK Synchro bosses and 13 Synchro Extra Deck slots
• Four hand traps plus negation text give layered interaction

Weaknesses

• Illegal list: Called by the Grave is Forbidden
• Zero side deck cards leave no post-side plan
• Four sub-archetypes compete for the same hand slots (21% exact-name purity)
• Going-first and going-second splits cannot be measured (all combos unknown)

Critical choke points

• Single Forbidden card in the main deck makes the whole list illegal until removed
• Hand-trap coverage depends on 4 cards, about 43% to have one in a 6-card opening hand
• Synchro boss access depends on Tuner plus Synchro summons from a small set of tuners

Recommended changes

Evidence & confidence

• Verified: Deck is Illegal: Called by the Grave is Forbidden with 1 copy run; Main 47 (range 40-60) and Extra 15 (range 0-15) are within size rules; Exact archetype purity 21%, sub-archetype spread from composition
• Observed: Best recorded PowerIndex 100 and median 91 across 10 combos; Average GY 8.7, end hand 2.4, banished 0.6 from recorded boards; Board per starter median 1.9, max 7
• Inferred: Starter access about 0.29 per 3-copy card in a 5-card hand (hypergeometric); Searcher access about 0.91 in 5 cards; hand-trap access about 0.43 in 6 cards; Interaction density 4.2 read as layered interaction (semantic read of card text)
• Provisional: Going-first and going-second split (all combos unknown); Matchup fit and Meta Power (no dated metagame sample); Post-side plan (no side cards)
• Data gaps: no archetype usage statistics: core/meta-standard comparison unavailable no tournament link: archetype meta-share and per-pilot match record absent no win-rate telemetry exists in YGOVN (going-first/second, matchup, game-level, brick/starter/OTK rates) all 10 recorded combos are tagged unknown, so the going-first and going-second split is unavailable zero side deck cards: no post-side evidence