Stardust Bystial Deck #762091 — Yu-Gi-Oh! Master Duel

Deck — Deck Power Evaluation

Final Contextual Deck Power: 58/100 (±7 · Confidence: Medium)

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

Legality

Main 41 / Extra 15 / Side 0 — status: Legal.

Identity & game plan

• Win condition: Fusion Summon Dragonmaid boss monsters (Sheou, House Dragonmaid, Tinkhec, Lorpar, Ernus, Nudyarl) from the Extra Deck and convert the board with 2600-3500 ATK bodies; Bystial and Fiendsmith Fusion/Link lines, plus Raigeki as a one-card board wipe
• Turn 1 (going first): Turn 1 Normal Summon a 3-copy Dragonmaid starter (Chamber, Nurse, or Parlor), search a Dragonmaid Spell/Trap, and set up a Dragonmaid Fusion through Changeover or Sheou
• Turn 2 (going second): Hold Ash Blossom and Dragonmaid Tidying or Tinkhec-style responses for the opponent's first Normal Summon or search, then rebuild through a Fusion Summon from the Extra Deck
• Recovery: Dragonmaid monsters return to hand and re-summon at the Battle Phase, and Changeover recycles from the GY to rebuild the Fusion
• After siding: No side deck is registered, so there is no post-side plan to evaluate

Why it scores here

The deck opens reliably: the searcher group gives about 0.87 odds of at least one searcher in a 5-card opening hand, and nine copies of the Dragonmaid level-based starters give a repeatable first summon. Its engine converts through Extra Deck Fusions (Sheou, House Dragonmaid) into 2600-3500 ATK bodies that close games. Interaction is spread across Ash Blossom, Raigeki, Bystial banishers and Dragonmaid negations, so it can answer a board or continue after one disruption. Its weakness is structural: it mixes Dragonmaid, Bystial, Fiendsmith and Millennium cards, has no side deck, and has no recorded boards, so the floor and median are inferred. The score comes from consistency, median output and interaction at the system level, not from averaging card scores and not from the archetype's popularity; the archetype label Stardust Bystial matches no Stardust card in the list.

Dimension scores

How the score was computed

Strategy profile: Midrange. Structural ≈ 62, Going First ≈ 64, Going Second ≈ 60, Meta = provisional, Tournament Reliability ≈ 58. Modifiers: engine conflicts (-2); no side deck (-1). Final formula: 0.80*Structural + 0.20*TournamentReliability + ContextModifiers (Meta provisional); 0.80*62 + 0.20*58 = 61.2, then modifiers -3.2 gives 58

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

• 13 searcher-text copies make a 5-card opening hand likely to find a Dragonmaid or Fusion route
• Nine copies of the 3-copy Dragonmaid starters give consistent T1 summons
• Extra Deck Fusions reach 2600-3500 ATK, so the deck can close games
• Layered interaction: Ash Blossom, Raigeki, Bystial banishers and Sheou negation

Weaknesses

• Mixed sub-archetypes (Dragonmaid, Bystial, Fiendsmith, Millennium, Branded, Wedju, Fabled) dilute the engine
• No side deck, so no post-side plan in best-of-3
• Archetype label Stardust Bystial matches no Stardust card, so the deck identity is unclear
• Link Extra Deck cards are mostly unsupported by the Dragon engine

Critical choke points

• The Dragonmaid Fusion route depends on Sheou, House Dragonmaid, or Changeover being live; losing it leaves Dragonmaid starters without a finisher
• Only 2 Ash Blossoms and 1 Raigeki cover hand traps and board wipes

Recommended changes

Evidence & confidence

• Verified: Legality: Legal, 41 main, 15 extra, 0 side; Bystial Magnamhut is Limited with 1 copy run (legal); Composition: 26 distinct main cards, 12 distinct extra cards, 13 searcher-text cards, 2 Ash Blossom copies; Usage: Ash Blossom & Joyous Spring is a core card (75% inclusion) and 1 of 4 core cards present
• Inferred: Opening-hand odds from hypergeometric estimates; Strategy label Midrange with Toolbox and Combo secondaries from card text; Interaction quality from card text; Going-first and going-second power estimates
• Provisional: Meta power is null: no dated metagame sample; Matchup fit and tournament reliability: no tournament link
• 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 are absent No win-rate telemetry for going-first, going-second, matchup, starter or brick rates Meta Power is provisional without a dated metagame sample Archetype label Stardust Bystial conflicts with the card pool (no Stardust cards) No side deck registered