Stardust Deck #677334 — Yu-Gi-Oh! Master Duel

Deck — Deck Power Evaluation

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

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

Legality

Main 43 / Extra 15 / Side 0 — status under the rules at evaluation time: Illegal. 1 violation(s).

Identity & game plan

• Win condition: Synchro Summon a boss (Bystial Dis Pater, Chaos Angel, Scarlight Red Dragon Archfiend, Swordsoul Supreme Sovereign - Chengying, Shooting Majestic Star Dragon) from Bystial/Stardust/Junk material chains and close through board-breaking attackers and effect removal.; Bystial recursion from banish/GY (Bystial Druiswurm, Saronir, Baldrake, Magnamhut) feeding repeated Extra Deck summons.
• Turn 1 (going first): Open on Junk Meister / Stardust Synchron / Primite Roar or Lordly Lode to reach a Tuner + non-Tuner Synchro; Junk Signal and Junk Meister extend into the Extra Deck boss.
• Turn 2 (going second): Ash Blossom and Maxx C to disrupt the opponent's summons on the first turn, then rebuild a Bystial boss from the GY or banish zone.
• Recovery: Bystial Druiswurm / Saronir / Baldrake banish-and-summon effects and Stardust Synchron GY recursion rebuild the board from a small residue.
• After siding: No side deck is registered in the export, so no post-side plan can be assessed; Illegal status also blocks a normal post-side read.

Why it scores here

The deck's power is judged as a system: the Bystial, Primite and Junk engines overlap through shared Tuner/Synchro lines, and the archetype core is opened in 87.7% of five-card hands (Inferred hypergeometric estimate). Conversion is strong when the line works (the single recorded board reaches PowerIndex 100 with three boss monsters and five Extra Deck summons), but the sample is one combo, so the median and floor cannot be read from it and are scored conservatively. Interaction is layered through Ash Blossom, Maxx C and several negation or removal effects, which lifts the end-board and going-second reads. Popularity and archetype usage stats were not used as evidence of strength, and card scores were not averaged. The deck runs Called by the Grave at one copy despite its Forbidden status, which makes the list illegal and caps the final contextual score low, so the result is structural only.

Dimension scores

How the score was computed

Strategy profile: Combo. Structural ≈ 56, Going First ≈ 58, Going Second ≈ 57, Meta = provisional, Tournament Reliability ≈ 45. Modifiers: banlist exposure (-5); no side deck (-2). Final formula: No reliable metagame: 0.80*Structural(56.4) + 0.20*TournamentReliability(45) = 54.1; context modifiers -7 gives 47; capped at 30 because legality is Illegal (Called by the Grave is Forbidden). Theoretical/structural-only.

Probability & combo summary

• Opening a starter: P(≥1) ≈ 0.88 · key two-card combo ≈ — · full-brick estimate ≈ 0.12 (all Inferred)
• Combo output: best PowerIndex 100, median 100, board-per-starter 3
• Turn order: 0 going-first lines vs 0 going-second lines

Strengths

• Archetype core is reachable in most opening hands (0.877 in five cards)
• Extra Deck covers Synchro, Link, Fusion and Xyz with several 3000+ ATK bosses
• Layered interaction: Ash Blossom, Maxx C, and negation or removal text across the main deck

Weaknesses

• Illegal list: Called by the Grave is Forbidden and run at one copy
• Only one recorded combo, so the median and floor are unverified
• Low archetype purity (6.9%) across Bystial, Primite, Junk and others
• No side deck and no post-side plan

Critical choke points

• Starter access depends on Stardust Synchron, which runs 2 copies
• Going first hinges on a Tuner plus Junk Meister or Junk Signal chain with no second independent line
• Recovery relies on Bystial banish-summon effects and GY recursion

Recommended changes

Evidence & confidence

• Verified: Called by the Grave is Forbidden in master-duel and is run at one copy, which makes the list Illegal; Main 43 and Extra 15 are within the master-duel size rules; Maxx C, Bystial Magnamhut and Reinforcement of the Army are Limited at one copy each and legal; Archetype spread and Extra Deck breakdown from the export
• Observed: One recorded combo with PowerIndex 100, 3 bosses, 5 Extra Deck summons and netCardAdvantage 6
• Inferred: P(>=1 core in hand5) = 0.877 and the consistency read built on it; Interaction and going-second reads from card text; Recovery and resilience estimates from resource signature
• Provisional: Meta Power is null; Matchup and format fit are unscored without a dated meta sample; Going-first and going-second powers rest on text, not win data
• Data gaps: Only one recorded combo: no median or floor distribution No tournament link: archetype meta-share and per-pilot records absent No win-rate telemetry (going-first/second, matchup, brick/starter/OTK rates) No side deck in the export Meta Power is provisional without a dated metagame sample Guide snippet is one short forum-style excerpt with no sections