K9 Deck #773549 — Yu-Gi-Oh! Master Duel

Deck — Deck Power Evaluation

Final Contextual Deck Power: 59/100 (±6 · Confidence: Medium)

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

Legality

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

Identity & game plan

• Win condition: Xyz beatdown from K9 Xyz monsters: K9-X Werewolf (multi-attack), K9-X Ripper/M (3100 ATK, piercing) and Divine Arsenal AA-ZEUS; Negate-lock and removal (Number C106, Number C104, K9-66X Jacks, Artifact Durendal) to keep the opponent's board from recovering
• Turn 1 (going first): Normal Summon K9-04 Noroi or K9-17 Izuna without tribute (the opponent holds 5 cards), build Level 5 monsters toward K9-17 Ripper, and hold Ash Blossom or Infinite Impermanence for the opponent's first response
• Turn 2 (going second): Keep hand traps (Ash Blossom, Infinite Impermanence, Droll and Lock Bird, Maxx C, Cyber Dragon, Disablaster) to answer the opponent's first summon or set, then rebuild through K9 Xyz summons
• Recovery: Searchers (A Case for K9, K9-66a Jokul, K9-66b Lantern, Chaotic Elements, Seventh Tachyon) and Ripper's detach-to-search effect restock the hand after a board loss
• After siding: No side deck registered (0 side cards); no post-side plan can be evaluated

Why it scores here

The deck reliably opens a K9 starter: 10 copies of tributeless Normal Summon monsters (Noroi, Izuna, Jokul, Lantern) give about a 78% chance of at least one in a 5-card opening hand (Inferred hypergeometric estimate). It converts that starter through Xyz summons into strong closers (Werewolf, Ripper/M, ZEUS) and keeps interaction in hand with 9 hand traps and about 11 negation-text cards, which is where most of its score comes from. Recovery is credible through searchers and a 12-card searcher group, but no recorded boards exist, so the combo floor and median are inferred from card text only. Popularity and archetype share earned no points, and the score comes from consistency, interaction and closing power on the system; card scores were not averaged. The deck has no side deck and only 40% exact-name K9 purity, which cap the score, and the final value is reduced for banlist exposure and engine conflicts.

Dimension scores

How the score was computed

Strategy profile: Midrange. Structural ≈ 68, Going First ≈ 73, Going Second ≈ 72, Meta = provisional, Tournament Reliability ≈ 58. Modifiers: banlist exposure (-2); engine conflicts (-3); post-side plan (-2). Final formula: 0.80*Structural + 0.20*TournamentReliability (Meta provisional) + ContextModifiers(-7) = 0.80*67.84 + 0.20*58 - 7 ≈ 58.9 -> 59

Probability & combo summary

• Opening a starter: P(≥1) ≈ 0.78 · 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

• 17 K9-named main-deck copies with tributeless Normal Summons from Noroi, Izuna, Jokul and Lantern
• Layered interaction: 9 hand traps plus Number C106, Number C104, Jacks, Durendal and Crossout Designator
• High-ATK Xyz closers: Werewolf, Ripper/M and ZEUS
• Searcher density (12 copies) supports recovery

Weaknesses

• Exact-name K9 purity is 40% (22 of 55 archetype-named copies); sub-archetype engines dilute the core
• No recorded boards, so combo floor, median and ceiling are inferred from text
• No side deck, so no post-side plan
• Usage-statistics in this deck flags contradict the card list for several Extra Deck cards (see data gaps)

Critical choke points

• Ripper and most K9 Xyz summons need two Level 5 monsters on the field
• Hand-trap dependence: 9 hand traps are dead without an opponent action on the going-first turn
• Jokul and Droll are at the Semi-Limited maximum of 2 copies

Recommended changes

Evidence & confidence

• Verified: Legal status and size: 40 main, 15 extra, 0 side within the Master Duel limits; Restricted cards at or below legal copies (Crossout Designator 1/1, Maxx C 1/1, Droll 2/2, Jokul 2/2); Card text and stats from the card list; Copy histogram and Extra Deck composition (14 distinct, 13 Xyz plus 1 Link)
• Inferred: Starter probability ≈ 0.78 (tributeless K9 summons); Hand-trap and interaction density, and the semantic read of negate and removal text; Going-first and going-second estimates; Consistency and brick estimates from hypergeometric draws
• Provisional: Meta Power (null, no dated metagame sample); Matchup fit (D13) and side-deck adaptability (D12); Tournament reliability (no tournament link)
• Data gaps: No combos supplied: combo floor, median and ceiling are text-only inference No tournament link: archetype meta-share and match record absent No win-rate telemetry for going-first, going-second, matchup or brick rates Meta Power is provisional without a dated metagame sample Zero side-deck cards Contradiction: usage statistics marks Number 104, Number C104, CXyz N.As.Ch, N.As.H Knight, K9-66X Jacks, K9-X Werewolf, Divine Arsenal ZEUS and K9-17 Ripper as not in deck (in this deck false, copies 0), but the cards array lists them in the Extra Deck. The cards array was treated as authoritative; core-card presence (28%) and missing core cards are therefore unreliable and were not used Contradiction: archetype core reports 15 copies, but the main deck holds 17 K9-named copies (Noroi 3, Izuna 3, Case 3, Jokul 2, Lantern 2, Lupis 2, LC Release Restraint 1, X Forced Release 1). The reported 0.92 group probability was not recomputed