Stardust Bystial Deck #770639 — Yu-Gi-Oh! Master Duel

Deck — Deck Power Evaluation

Final Contextual Deck Power: 63/100 (±10 · Confidence: Low)

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

Legality

Main 43 / Extra 15 / Side 0 — status: Legal.

Identity & game plan

• Win condition: Synchro-summoned boss pressure from the 15-card Extra Deck (T.G. Glaive Blaster 4000 ATK, Junk Warrior Extreme 2900 ATK, Power Tool Braver Dragon 2500 ATK, Satellite Warrior 2500 ATK). Text-based read, Inferred.; Junk Warrior ATK-boost and Stardust Dragon / Baronne de Fleur board control, converting a stabilised board into a Synchro finish.
• Turn 1 (going first): Open a Synchron/Junk starter (Junk Synchron, Scrap Synchron, Synchron Carrier, Junk Meister, Junk Converter, Junk Signal, On Your Mark Get Set DUEL!), search a second Synchron or Junk piece, then Synchro Summon a boss while holding Ash Blossom or Infinite Impermanence for the opponent's first interaction.
• Turn 2 (going second): Hold 6 cards with a hand trap (Infinite Impermanence, Ash Blossom, Maxx C, Effect Veiler; P(>=1 hand trap in 6) about 0.68), negate or handle the opponent's first board, then Synchro Summon through the cleared field.
• Recovery: Recur from the GY: Junk Synchron Special Summons Level 2 or lower monsters from the GY, Jet Synchron and Anchorbolt Hedgehog re-enter from the GY, and Stardust Trail or Stardust Dragon re-summon from the Extra Deck.
• After siding: Not applicable: side_count is 0 and Master Duel supplies no side deck. No post-side plan exists in this evidence.

Why it scores here

The deck is scored as one connected Junk/Synchron/Stardust/Warrior Synchro system, not as an average of its card scores and not on popularity; the 'Stardust Bystial' label matches no card in the list (exact-name purity 0%). It opens a Synchro plan reasonably well: 12 searcher-text cards give a 0.82 chance of at least one in a 5-card opening hand, and the Synchron/Junk tuner package has several redundant starters. Its interaction is the main strength, with 7 hand traps (Infinite Impermanence x3, Ash Blossom x2, Maxx C, Effect Veiler) and Synchro-based negation and removal in the Extra Deck. Its finish is high-ceiling Synchro bosses, but no recorded boards exist, so floor, median and ceiling are inferred from text only and confidence is Low. The score would drop sharply if the scattered sub-archetype engine proves to conflict in practice.

Dimension scores

How the score was computed

Strategy profile: Combo. Structural ≈ 63.8, Going First ≈ 62, Going Second ≈ 66, Meta = provisional, Tournament Reliability ≈ 60. Modifiers: Scattered sub-archetype engine (-2); Hand-trap redundancy (2). Final formula: 0.80*Structural + 0.20*TournamentReliability (Meta provisional); Structural = 63.8, TR = 60, modifiers net 0 => 63.04, rounded to 63

Probability & combo summary

• Opening a starter: P(≥1) ≈ 0.82 · 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 hand-trap suite: 7 hand traps, including 3 Infinite Impermanence and 2 Ash Blossom
• Starter redundancy across Junk Synchron, Scrap Synchron, Synchron Carrier, Junk Meister and Junk Converter
• Synchro Extra Deck with high-ATK bosses and Stardust Dragon negation
• Searcher density (12 cards) gives a 0.82 chance of at least one in a 5-card hand

Weaknesses

• No recorded boards: floor and median are unmeasured
• Archetype label 'Stardust Bystial' has no matching cards, so the engine identity is unclear
• Many off-archetype singletons (Metalsilver Armor, Supermagic Sword, Power of the Guardians, Scrap Fist) dilute consistency
• No side deck in Master Duel, so no post-side adaptation

Critical choke points

• Synchron/Junk starter access in the opening hand (about 0.82 for a searcher, but a single missed starter ends the turn-1 line)
• Tuner count (12) against the 15 Synchro bosses: a missing Tuner stalls the Synchro Summon
• Hand-trap timing: holding Ash or Impermanence for the first interaction costs the turn-1 board

Recommended changes

Evidence & confidence

• Verified: Legal in master-duel: 43 main, 15 extra, 0 side; within 40-60 main and 0-15 extra; Maxx C at 1 copy, Limited, within the legal limit of 1; Copy histogram 18 singletons, 8 doubles, 3 triples, matching the card list
• Inferred: P(>=1 searcher in 5-card hand) about 0.82; P(>=1 hand trap in 6-card hand) about 0.68; Interaction density from negation and removal text (Stardust Dragon, Baronne de Fleur, Infinite Impermanence); Combo-ceiling and resilience estimates from card text alone
• Provisional: Meta Power (null) and matchup fit (D13 placeholder 50): no dated metagame sample supplied
• 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 for going-first/second, matchup, brick or starter rate Archetype label 'Stardust Bystial' matches no card in the list (exact-name purity 0%) Usage core stats list Elfnote and Power Patron cards outside this deck's engine, so core inclusion is not a reliable benchmark Meta Power is provisional: no dated metagame sample