K9 Deck #773874 — Yu-Gi-Oh! Master Duel

Deck — Deck Power Evaluation

Final Contextual Deck Power: 53/100 (±8 · Confidence: Medium)

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

Legality

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

Identity & game plan

• Win condition: Xyz boss from the K9 and Vanquish Soul lines (K9-X Werewolf, K9-66X Jacks, Vanquish Soul Rocks, Caesar Valius) reached through hand-based Normal and Special Summons; Direct attacks and battle pressure from Vanquish Soul Jiaolong, Heavy Borger and Hollie Sue; Level 9 and Level 12 Xyz (Werewolf, AA-ZEUS, TY-PHON) are reachable only through alternate Xyz routes
• Turn 1 (going first): Open with a Vanquish Soul or K9 searcher (Dr. Mad Love, Razen, Izuna, Jokul, A Case for K9) and a Level 4 or 5 monster to Xyz Summon a board breaker, holding Ash Blossom and Maxx C for the opponent's first activation
• Turn 2 (going second): Hold Ash Blossom, Ghost Belle and Maxx C to answer the opponent's first starter, then rebuild through Hollie Sue or Jokul hand summons and an Xyz from the Extra Deck
• Recovery: Use Mulcharmy draw effects, Heavy Borger returns and Vanquish Soul search effects to refill the hand, and detach Xyz materials for Jacks or Lupis removal to clear the field
• After siding: None: the deck runs no Side Deck (0 cards), so there is no post-side adjustment and the matchup adaptability is limited to the Main Deck

Why it scores here

The deck's Main Deck is built around five searchers and a large hand-summon package (Hollie Sue, Jokul, Izuna, Valius), so the core K9 and Vanquish Soul starters are live in the opening hand about 99% of the time (hypergeometric estimate, Inferred). It converts that access into Xyz bosses from the Extra Deck, and its 9 removal-text cards and 5 negation-text cards give the end board real interaction, most clearly through Jacks, Ripper and Forced Release. Its weaknesses are a 40-card list with 23 distinct cards, five low-ATK Mulcharmy monsters that brick when the controller already has cards, and three Extra Deck Xyz that need Level 9 or Level 12 materials the Main Deck cannot supply. No combo boards, guides or tournament data exist for this deck, so the floor, median and ceiling are text-based inference only. The score was built from consistency, interaction and closing power on the system; the K9 and Vanquish Soul popularity in the usage stats was not credited as strength, and no card scores were averaged into the deck score.

Dimension scores

How the score was computed

Strategy profile: Midrange. Structural ≈ 59, Going First ≈ 60, Going Second ≈ 62, Meta = provisional, Tournament Reliability ≈ 55. Modifiers: Unrecoverable Extra-Deck access gap (-3); Weak / absent post-side plan (-2). Final formula: 0.80*Structural(59.35) + 0.20*TournamentReliability(55) + ContextModifiers(-5) = 53.48, rounded to 53 (Meta provisional)

Probability & combo summary

• Opening a starter: P(≥1) ≈ 0.99 · 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

• Five searchers and a deep hand-summon package make the core engine live in nearly every opening hand
• Six hand traps and nine removal-text cards give layered interaction through the turn
• Strong Level 8 to 12 Xyz bosses (Valius, AA-ZEUS, Werewolf, TY-PHON) once summoned

Weaknesses

• Five Mulcharmy monsters are low-ATK, conditional and brick-prone
• Three Extra Deck bosses need Level 9 or 12 materials the Main Deck cannot provide
• No Side Deck, so no matchup adaptation
• 23.6% exact archetype purity makes the engine a hybrid that can conflict across K9 and Vanquish Soul lines

Critical choke points

• The Xyz boss route depends on Level 4 or 5 materials, which the Main Deck supplies in limited numbers
• Hand-trap interaction is single-copy for Maxx C, so one hit by a sweeper or hand disruption removes that layer

Recommended changes

Evidence & confidence

• Verified: Deck is legal: 40 Main, 15 Extra, 0 Side, all restricted copies within legal copies; Card text and stats for all listed cards; Copy histogram and archetype spread from composition; Usage statistics show K9 and Vanquish Soul core cards are standard for the archetype
• Inferred: Hypergeometric starter access (0.987 core, 0.92 searcher); Brick risk from Mulcharmy and conditional cards; Hand-trap access on going second (about 0.65); Xyz route feasibility for Level 9 and 12 bosses
• Provisional: Meta Power (null, no dated metagame sample); Format fit and matchup coverage (no tournament data)
• 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: going-first and going-second, matchup and brick rates are Inferred or Unknown Meta Power is Provisional unless a dated metagame sample is supplied no guides attached for the K9 or Vanquish Soul archetype