Junk Deck #771886 — Yu-Gi-Oh! OCG

Deck — Deck Power Evaluation

Final Contextual Deck Power: 35/100 (±10 · Confidence: Low)

• Primary strategy: Combo
• Secondary strategies: Stun
• Format: ocg

Legality

Main 55 / Extra 15 / Side 0 — status under the rules at evaluation time: Illegal. 1 violation(s).

Identity & game plan

• Win condition: Synchro Summon a large Extra Deck boss (Shooting Majestic Star Dragon, Bystial Dis Pater, Stardust Warrior) off Junk Synchron, Scrap Synchron and Jet Synchron starters; Stardust and Rose Synchro beats on the back of 15 hand traps and negation text
• Turn 1 (going first): Open a Tuner starter (Junk Meister, Full-Speed Warrior, Assault Sonic Warrior or Junk Synchron), search a Junk Synchron or Junk monster, Synchro Summon a boss, and hold Ash Blossom or Ghost Ogre for the opponent's response
• Turn 2 (going second): Use the six-card hand's hand traps (Ash Blossom, D.D. Crow, Nibiru, Skull Meister, Ghost Ogre, Droll and Lock Bird) to break the opponent's starter, then rebuild the Synchro line on the following turn
• Recovery: Mulcharmy Fuwalos and Purulia draw on an empty field, Junk Meister and Synchro searchers refill the hand, and Junk Synchron recurs from the GY
• After siding: Not evaluable: the Side Deck is empty (0 cards), so there is no post-side plan

Why it scores here

The deck reliably opens a Tuner starter in the archetype core (P(at least one archetype-core card in 5 cards) about 0.86, Inferred) and has many interaction pieces, so it can answer a first opposing turn with hand traps. Its ceiling is a Synchro boss from the Extra Deck, but no recorded boards exist, so conversion and median output are text-only estimates and carry low confidence. The list is spread across several sub-archetypes (archetype purity 12.9%), which weakens engine coherence, and the empty Side Deck gives no post-side answer. The score comes from consistency and interaction on the system, not from the Junk archetype's popularity and not from averaging card scores. The deck is Illegal (three copies of a Semi-Limited card), so the score is capped at 35 and the evaluation is structural and theoretical only.

Dimension scores

How the score was computed

Strategy profile: Combo. Structural ≈ 53, Going First ≈ 55, Going Second ≈ 62, Meta = provisional, Tournament Reliability ≈ 45. Modifiers: banlist_exposure (-6). Final formula: No reliable metagame: 0.80*Structural(53) + 0.20*TournamentReliability(45) - 6 (banlist exposure) = 45, then capped at 35 because the deck is Illegal; theoretical/structural only

Probability & combo summary

• Opening a starter: P(≥1) ≈ 0.25 · 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 interaction: 15 hand traps and 16 negation-text cards give strong going-second answers
• Tuner-rich Synchro base with recursion (Junk Synchron, Jet Synchron) allows rebuilding
• High-ATK Extra Deck bosses (Majestic 4000, Bystial 3500) give closing power

Weaknesses

• Illegal list: Ash Blossom & Joyous Spring is run 3 copies against a 2-copy Semi-Limited limit
• Low archetype purity (12.9%): the list mixes Junk, Mulcharmy, Stardust, Synchro, D.D. and Forbidden
• Empty Side Deck: no post-side plan
• No recorded boards: floor, median and ceiling are text-only estimates

Critical choke points

• Junk Meister and Junk Synchron are the main starters; losing them to a going-first disruption collapses the Synchro line
• Synchro Summons need a Tuner and a non-Tuner on board; a single Tuner can be stranded in hand

Recommended changes

Evidence & confidence

• Verified: Main Deck 55 cards, Extra 15, Side 0 (within OCG size limits); Ash Blossom & Joyous Spring run 3 copies against a Semi-Limited limit of 2 (illegal); Shooting Majestic Star Dragon ATK 4000; Bystial Dis Pater ATK 3500; Archetype purity 12.9%; 14 Synchro and 1 Fusion in the Extra Deck
• Inferred: Archetype-core P(>=1 in 5) about 0.86 and hand-trap P(>=1 in 6) about 0.87; Interaction density from 15 hand traps and 16 negation-text cards; Structural score 53 from the Combo weight profile
• Provisional: Meta Power null; no dated metagame sample; Matchup fit D13 is a judgment with 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 record absent no win-rate telemetry (going-first/second, matchup, brick and starter rates) Meta Power is provisional without a dated metagame sample Side Deck is empty, so no post-side evidence exists