Junk Deck #770637 — Yu-Gi-Oh! Master Duel

Deck — Deck Power Evaluation

Final Contextual Deck Power: 55/100 (±7 · Confidence: Medium)

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

Legality

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

Identity & game plan

• Win condition: Synchro Summon Junk Warrior, Stardust Dragon or Stardust Charge Warrior off a Junk Synchron / Synchron tuner base, then attack through a hand-trap-protected board; T.G. Glaive Blaster (4000 ATK) once a Tuner Synchro plus two non-Tuner Synchros are available
• Turn 1 (going first): Search with Junk Converter, Junk Meister, Junk Signal or On Your Mark into Junk Synchron, Normal Summon it, and Synchro Summon a Junk or Stardust boss (Inferred from card text; no recorded boards)
• Turn 2 (going second): Hold Ash Blossom, Effect Veiler, Infinite Impermanence and Maxx "C" to disrupt the opponent's first engine, then rebuild through GY effects (Jet Synchron, Anchorbolt Hedgehog) (Inferred)
• Recovery: Junk Synchron and Scrap Synchron recursion from the GY, plus Stardust Trail and Anchorbolt Hedgehog special summons (Inferred)
• After siding: Not applicable: Master Duel has no side deck; side count is 0

Why it scores here

The deck scores as a Synchro Combo system, not as an average of its card scores. Its starter access is moderate: any single two-copy starter is live in an opening 5 only about 22% of the time, while the 12 searcher-text cards give about an 82% chance of at least one searcher in hand (Inferred hypergeometric estimates). Its ceiling is strong on paper, with Junk Warrior, Stardust Dragon and T.G. Glaive Blaster as boss monsters, but no recorded boards exist, so the ceiling and median are text-only inference. Interaction is the clearest strength: seven hand traps plus negation text across Stardust Dragon, Baronne de Fleur and Power Tool Braver Dragon give layered answers. The deck loses points for fragmentation: only 20.7% of its cards share the exact Junk name, and it draws on at least seven sub-engines (Junk, Stardust, Synchron, Scrap, Synchro, Power Tool, T.G./Fleur), which lowers consistency. Popularity and archetype usage did not earn points; the single usage row (Junk Synchron, 50% inclusion) only confirms the core card is standard.

Dimension scores

How the score was computed

Strategy profile: Combo. Structural ≈ 60, Going First ≈ 62, Going Second ≈ 58, Meta = provisional, Tournament Reliability ≈ 55. Modifiers: engine fragmentation (-4); single-card dependence on Junk Synchron (-2); layered hand-trap suite (2). Final formula: 0.80*Structural + 0.20*TournamentReliability + ContextModifiers (Meta provisional, null)

Probability & combo summary

• Opening a starter: P(≥1) ≈ 0.22 · 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

• Layered interaction with seven hand traps and multiple negation effects
• High semantic ceiling from Junk Warrior, Stardust Dragon and T.G. Glaive Blaster
• Searcher density (12 cards) makes an engine piece reachable in most hands

Weaknesses

• Fragmented archetype core: only 20.7% exact-name purity across several sub-engines
• Off-engine singletons (Doppelwarrior, Mulcharmy Fuwalos, Metalsilver Armor) dilute compactness
• No recorded boards, so the ceiling and median are unverified

Critical choke points

• Junk Synchron (2 copies) gates Junk Warrior and most Junk searches
• A hand without a searcher or tuner starter has no Synchro line

Recommended changes

Evidence & confidence

• Verified: Deck is legal in Master Duel: 43 main, 15 extra, 0 side, Maxx "C" 1 copy within Limited; Archetype purity 20.7% and 12 tuner copies from composition; Hypergeometric draw probabilities from the Main Deck
• Inferred: Engine consistency and searcher access (D1, D2); Interaction density from negation and hand-trap text (D7, D8); Ceiling from semantic reading of boss text (D3, D9)
• Provisional: Median output and floor (D4); Side adaptability (D12) and matchup fit (D13), since no tournament or meta sample exists
• Data gaps: No combos supplied: floor, median and ceiling are text-only inference No tournament link: archetype meta-share and pilot record are absent No win-rate, brick-rate or going-first telemetry exists in YGOVN Meta Power is provisional without a dated metagame sample