K9 Deck #773619 — Yu-Gi-Oh! Master Duel

Deck — Deck Power Evaluation

Final Contextual Deck Power: 58/100 (±7 · Confidence: Medium)

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

Legality

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

Identity & game plan

• Win condition: K9 Xyz boss pressure: K9-X Werewolf (3300 ATK, multi-attack) and K9-X Ripper/M (3100 ATK, piercing), with Number Xyz (Number 104, Number C104, Number C106) as a second boss route.; Piercing and direct damage from K9-X Ripper/M, plus hand-trap attrition that leaves the opponent without answers to the Level 5 Xyz.
• Turn 1 (going first): Normal Summon a K9 Level 5 monster without Tribute (opponent holds 2 or more cards), search a second K9 through Lantern, Jokul, Noroi or Izuna, then Xyz into Jacks or Ripper while holding Ash Blossom, Effect Veiler or Droll for the opponent's turn.
• Turn 2 (going second): Use hand traps first (Ash Blossom, Effect Veiler, Droll and Lock Bird, Infinite Impermanence, Ghost Ogre and Snow Rabbit) to strip the opponent's engine, then Xyz off the Level 5 K9 monsters at the end of their turn.
• Recovery: K9 searchers (Case for K9, Chaotic Elements, Seventh Tachyon) and K9-LC or K9-X Forced Release re-add Level 5 K9 monsters and re-establish the Xyz line after a hand-trap or board wipe.
• After siding: None in evidence: the deck runs no Side Deck (side_count 0), so there is no post-side plan.

Why it scores here

The deck reliably opens a K9 engine: 11 K9 core copies give about 82% odds of at least one in a 5-card opening hand, and 14 searcher-text cards lift the chance of a searcher to about 90%. Interaction is the strongest part of the system, with 11 hand traps and 9 negation and 8 removal effects that are layered rather than one-card answers, so the deck can continue through a single disruption and keep its Level 5 Xyz route alive. Its ceiling is carried by K9-X Werewolf, K9-X Ripper/M and the Number Xyz monsters, which pressure well above 3000 ATK, but there is no recorded board data, so conversion and median output are text-based inferences only. The score comes from consistency, interaction and resilience measured on the whole system, not from averaging the card scores, and K9 popularity earned no points. Two points cap the score: the Extra Deck mixes K9 and Number engines (8 of 15 Extra slots are non-K9), and the deck has no Side Deck, so there is no post-side plan.

Dimension scores

How the score was computed

Strategy profile: Midrange (D13 dropped and re-normalised over the remaining 95 weight points, since no reliable meta sample exists). Structural ≈ 64.2, Going First ≈ 68, Going Second ≈ 71, Meta = provisional, Tournament Reliability ≈ 52. Modifiers: engine_conflict (-2); no_side_deck (-2). Final formula: 0.80*Structural + 0.20*TournamentReliability + ContextModifiers (Meta provisional): 0.80*64.2 + 0.20*52 - 4 = 57.8, rounded to 58

Probability & combo summary

• Opening a starter: P(≥1) ≈ 0.82 · 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

• Layered interaction: 11 hand traps, 9 negation texts and 8 removal texts
• Level 5 K9 searchers keep the Xyz engine accessible on the first turn
• High closing power from K9-X Werewolf, K9-X Ripper/M and Number C104
• Strong going-second hand-trap density (about 0.88)

Weaknesses

• No Side Deck, so no post-side adaptation
• Extra Deck mixes K9 and Number engines, creating material and summon conflicts
• Only 45.5% exact-archetype purity, with generic hand traps and tech doing much of the work
• No recorded boards, so the combo ceiling and median are inferred from text

Critical choke points

• Level 5 K9 monster supply (searchers and the Lantern, Jokul, Noroi and Izuna chain) is the single gate to the Xyz line
• Xyz material availability for K9-X Werewolf and Ripper/M once the first Xyz is used
• Empty Side Deck: any matchup that hand traps cannot solve has no adaptation

Recommended changes

Evidence & confidence

• Verified: Legal under the master-duel ban field: Crossout Designator Limited 1 copy, Maxx C Limited 1 copy, Droll and Lock Bird Semi-Limited 2 copies; Main 40 and Extra 15 within size rules; Side 0 within the 0 to 15 range; Copy histogram 1:9, 2:2, 3:9; exact-name archetype purity 45.5%; Extra-Deck breakdown is 15 Xyz monsters
• Inferred: Engine accessibility about 0.82 for the K9 core and about 0.90 for searchers (hypergeometric); Going-second hand-trap availability about 0.88; Interaction layering and ceiling from card text and text_role_hints; Engine conflict between the K9 and Number Xyz routes
• Provisional: Meta Power (null) and matchup fit (D13 at 50 neutral), since no tournament link or dated meta sample exists
• Data gaps: No combos supplied: combo floor, median and ceiling are text-only inference (combos_evidence total_combos 0) No tournament link: archetype meta-share and per-pilot match record are absent No win-rate telemetry: going-first and going-second splits, matchup, brick and starter rates are Inferred or Unknown Usage-statistics in_this_deck flags conflict with the cards list for Extra-Deck cards (K9-X Werewolf, K9-66X Jacks, K9-17 Ripper, Number 104, N.As.H Knight, CXyz N.As.Ch Knight, Number C104, Divine Arsenal are in the deck but flagged false). Core coverage was recomputed from the cards list as 14 of 25 present rather than the flagged 6 of 25, and the missing_core list was treated as unreliable for Extra-Deck cards No Side Deck (side_count 0), so post-side data and plans are absent Deck title is null; deck identity comes from archetype K9 and the deck id only Meta Power is Provisional unless a dated metagame sample is supplied