K9 Deck #774289 — Yu-Gi-Oh! Master Duel

Deck — Deck Power Evaluation

Final Contextual Deck Power: 54/100 (±8 · Confidence: Medium)

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

Legality

Main 40 / Extra 15 / Side 0 — status: Legal.

Identity & game plan

• Win condition: Vanquish Soul boss monsters (Caesar Valius, Heavy Borger, Dogoran, Arc Rebellion) and Extra Deck Xyz/Link pressure from Rock of the Vanquisher and K9-66X Jacks, reached through hand-reveal Vanquish Soul summons; Hand-trap-protected board control with Ripper, Jacks and Umbral Horror Masquerade removing or negating opposing monsters and Spell/Trap cards
• Turn 1 (going first): Open Vanquish Soul starters (Dr. Mad Love, Heavy Borger, Hollie Sue) and Stake Your Soul or Start to reach a 2500+ ATK boss, then use Ash Blossom and Maxx C to protect the summon
• Turn 2 (going second): Use the six-card hand's 8 hand traps (Ash, D.D. Crow, Ghost Belle, Maxx C, Druiswurm, Magnamhut, Impulse, Snow Devil-adjacent interaction) to answer the opponent's first board, then rebuild through Vanquish Soul searchers
• Recovery: Searchers (Vanquish Soul Start, Razen, Jiaolong, Mulcharmy, Izuna, Rescue-ACE Impulse) and Rock of the Vanquisher's Extra Deck summon route refill the board after a single interruption (Inferred)
• After siding: No Side Deck is registered (side_count 0), so there is no post-side plan; the deck's adaptability relies entirely on main-deck flexibility

Why it scores here

The deck is legal (40 main, 15 extra, 0 side, all Limited and Semi-Limited copy counts respected) and its score comes from how the system opens and continues, not from the card pool's popularity or any average of card strengths. Its Vanquish Soul core (21 of 40 main/extra copies, across Dr. Mad Love, Heavy Borger, Hollie Sue, Razen, Jiaolong and Rock of the Vanquisher) gives it multiple hand-reveal starters that can keep a line alive after a single disruption, supported by 10 searchers and a Vanquish Soul-heavy searcher package. Its interaction is the strongest part: 8 hand traps, 5 negation effects and 12 removal-text cards, plus Ripper, Jacks and Umbral Horror Masquerade on the Extra Deck, give it end-board control that is layered rather than single-threaded. The deck converts into several 2500-3000 ATK bosses, but the recorded combo evidence is absent, so the ceiling and median are text-based inference only. Its main weaknesses are a split identity (exact archetype purity 10.9%, with K9, Rescue-ACE, Mulcharmy and Bystial mixed in), no Side Deck for a best-of-three plan, and no dated meta data to place it against the current field.

Dimension scores

How the score was computed

Strategy profile: Midrange. Structural ≈ 60, Going First ≈ 60, Going Second ≈ 62, Meta = provisional, Tournament Reliability ≈ 55. Modifiers: Engine conflict across sub-archetypes (-3); No Side Deck (-2). Final formula: 0.80*Structural + 0.20*TournamentReliability (Meta provisional) + ContextModifiers = 0.80*60 + 0.20*55 - 5 = 54

Probability & combo summary

• Opening a starter: P(≥1) ≈ 0.99 · key two-card combo ≈ — · full-brick estimate ≈ 0.01 (all Inferred)
• Combo output: best PowerIndex —, median —, board-per-starter —
• Turn order: 0 going-first lines vs 0 going-second lines

Strengths

• Legal list with all copy limits respected
• Eight hand traps and five negation-text cards give going-second resilience
• Multiple 3000 ATK bosses and 2500 ATK Heavy Borger give closing power
• Vanquish Soul hand-reveal starters and searchers keep the engine accessible

Weaknesses

• Exact archetype purity is only 10.9%; engines are split across Vanquish Soul, K9, Rescue-ACE, Mulcharmy and Bystial
• No Side Deck, so no best-of-three adaptation
• No recorded combos, so ceiling and median are not measured
• Many triple-copy engine pieces and singletons make the list reliant on specific draws

Critical choke points

• Vanquish Soul starter access in the opening hand (Dr. Mad Love, Heavy Borger, Hollie Sue)
• Single Rock of the Vanquisher Extra Deck route for Link-based pressure
• Interaction depending on a 5-card going-first hand with no side plan

Recommended changes

Evidence & confidence

• Verified: Main 40, Extra 15, Side 0 are within Master Duel size rules [40-60], [0-15], [0-15]; Copy limits: Limited cards at 1 copy, Semi-Limited Vanquish Soul Jiaolong at 2 copies, all legal; Vanquish Soul core count is 21 of 40 main/extra copies from the card list; Hypergeometric draw table (per-copy probabilities) from the evidence pack
• Inferred: Starter consistency (P ~0.99 for the archetype core proxy, Inferred from hypergeometric draw odds); Interaction layering from text read of hand traps, negation and removal cards; Going-second hand-trap coverage (~0.76 for at least one hand trap in six cards); Recovery and interruption routes from text read
• Provisional: Meta Power (no dated sample); Matchup and format fit (archetype share unavailable)
• 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, going-second, matchup and brick rates are Inferred or Unknown Meta Power is Provisional unless a dated metagame sample is supplied usage_statistics in_this_deck flags conflict with the cards array for several Extra Deck cards (Number C104: Umbral Horror Masquerade, CXyz N.As.Ch. Knight, Number 104: Masquerade, N.As.H. Knight, K9-66X Jacks, Rock of the Vanquisher, S:P Little Knight, K9-17 Ripper, Divine Arsenal AA-ZEUS, Super Starslayer TY-PHON are marked not in deck, yet appear in cards with zone extra); core_present_pct is likely understated and the cards array was used as the source of truth no side deck supplied, so post-side performance cannot be assessed