K9 Deck #773585 — Yu-Gi-Oh! Master Duel

Deck — Deck Power Evaluation

Final Contextual Deck Power: 51/100 (±8 · Confidence: Medium)

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

Legality

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

Identity & game plan

• Win condition: Field pressure from K9-X Werewolf (3300 ATK, multi-attack with material), Vanquish Soul Caesar Valius (3000 ATK), Divine Arsenal AA-ZEUS and Super Starslayer TY-PHON, sustained by K9 Xyz and Vanquish Soul summon loops.; K9-66X Jacks and K9-17 Ripper destruction and Xyz-chain effects that convert a single starter into board control and a follow-up Xyz.
• Turn 1 (going first): Open a Level 5 K9 starter (K9-17 Izuna or K9-04 Noroi, both Normal Summonable without Tribute at 2+ opponent cards) or a Vanquish Soul summon (Hollie Sue, Dr. Mad Love) into a Xyz or Link follow-up; hold Ash Blossom and Ghost Belle for the opponent's first activation.
• Turn 2 (going second): Use Ash Blossom, Ghost Belle and Maxx C (Limited, 1 copy) as hand traps against the opponent's starter, then rebuild through the searchers (A Case for K9, Vanquish Soul, Start!, Razen, Hollie Sue) into a Level 5 Xyz.
• Recovery: Recover through Ghost Belle's GY recursion, Mulcharmy draw effects and Chaotic Elements; re-search with the 15 searcher-text cards, then re-summon the Xyz from the 12-Xyz Extra Deck.
• After siding: No side deck is registered (Side Deck size 0), so there is no post-side plan; the deck cannot adapt between games in best-of-3 formats.

Why it scores here

The deck reliably opens a Level 5 K9 starter or a Vanquish Soul summon: the 3-copy starters (Izuna, Hollie Sue) each show a 0.34 chance of at least one in an opening 5, and the archetype-core group is almost always present, with 15 searcher-text cards giving about 0.92 odds of at least one searcher in hand. Hand traps (Ash Blossom, Ghost Belle, Maxx C) and the Level 5 Xyz finishers (Werewolf, Caesar Valius, AA-ZEUS, TY-PHON) supply interruption and closing power. The score does not come from K9 or Vanquish Soul being popular archetypes, and it is not an average of the card scores; it reflects the system's consistency and closing power, offset by a hybrid engine split (only 23.6% of cards carry the exact K9 name) and the absence of any side deck. No recorded combos, tournament data or win-rate telemetry exist, so median output and meta fit are estimated or provisional, and the score carries a wider band.

Dimension scores

How the score was computed

Strategy profile: Midrange 80 / Combo 20 (Midrange weights used for Structural; Combo signals are inferred from Xyz/Link and hand-trap lines). Structural ≈ 59, Going First ≈ 49, Going Second ≈ 55, Meta = provisional, Tournament Reliability ≈ 52. Modifiers: No side deck (-3); Hybrid engine split (-2); Limited / Semi-Limited exposure (-1). Final formula: 0.80*Structural + 0.20*TournamentReliability + ContextModifiers (Meta provisional, no dated metagame sample); 0.80*58.67 + 0.20*52 - 6 = 51.3

Probability & combo summary

• Opening a starter: P(≥1) ≈ 0.34 · 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

• Strong searcher and starter density: 15 searcher-text cards and about 0.92 odds of at least one searcher in an opening 5.
• Six hand traps (three Ash Blossom, two Ghost Belle, one Maxx C) give a going-second interruption plan.
• Closing power from Level 5 and Level 9 Xyz monsters with high ATK (Werewolf 3300, Caesar Valius 3000, AA-ZEUS 3000).

Weaknesses

• No side deck, so no post-side adaptation in best-of-3.
• Hybrid K9 and Vanquish Soul build with only 23.6% exact archetype purity; the two engines compete for Level 5 materials and hand space.
• Single-card starters (Izuna, Hollie Sue) at 3 copies carry about 0.34 odds each in an opening 5; no recorded combo data to confirm the two-card bootstrap.

Critical choke points

• Opening-hand starter access depends on Izuna or Hollie Sue (0.34 each), with no independent backup starter tested in the evidence.
• Multiple Level 5 Xyz finishers rely on the same material pool (13 Level 5 main-deck monsters), so one interruption can remove the material line.

Recommended changes

Evidence & confidence

• Verified: Legality: 40 Main / 15 Extra / 0 Side, within master-duel size rules; all restricted cards at legal copy count.; Card text, stats and archetype tags for all 37 distinct cards.; Composition: 13 exact-K9 copies, 23.6% exact purity; 6 hand traps, 15 searchers.; Usage statistics: 14 of 25 core cards present (56%).
• Inferred: Starter access probabilities (hypergeometric, 0.34 for 3-copy starter).; Hand-trap coverage: P(>=1 hand trap in 6-card hand) = 0.65.; Interruption resilience and closing estimates from card text.
• Provisional: Meta power and matchup fit (no dated metagame sample; 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 match record absent. No win-rate telemetry (going-first/second, matchup, starter/brick rates). Meta Power is provisional unless a dated metagame sample is supplied. Deck title is null; deck name is not recorded.