K9 Deck #750758 — Yu-Gi-Oh! Master Duel

Deck — Deck Power Evaluation

Final Contextual Deck Power: 60/100 (±6 · Confidence: Medium)

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

Legality

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

Identity & game plan

• Win condition: Level 5 K9 searcher/starter chain into Xyz bosses (K9-X Werewolf, K9-66X Jacks, K9-00 Hound, Number C104) that destroy or negate interaction and attack through the board; Release/Overlay Booster and Number-series negation tools that convert a single Xyz into board control
• Turn 1 (going first): Normal Summon a K9 Level 5 starter (Noroi, Lantern, Jokul or Izuna, which the 2,200 to 2,300 ATK bodies allow without tribute when the opponent holds 2+ cards), search with A Case for K9 or Jokul, and build an Xyz boss from the Extra Deck
• Turn 2 (going second): Hold Ash Blossom, Infinite Impermanence and Disablaster to answer the opponent's first Xyz or search, then rebuild from K9 starters on the next turn
• Recovery: Ripper, Lantern and Noroi recur or re-summon from the GY, and K9-X Forced Release or K9-EW Special Release rebuild a boss from a single surviving Xyz
• After siding: No side deck is registered in the export, so no post-side plan can be evaluated

Why it scores here

The score is built on the deck as a system: the 9 archetype-core copies give a 74% chance of at least one core card in the opening five, the 12 searcher-text cards lift that to 85%, and five distinct starters give several ways to open a live T1 line. Its interaction suite (Ash Blossom, Infinite Impermanence, Disablaster, Number C104, Baronne-style destruction) is dense enough to raise the endboard and going-second dimensions, and recursion through Ripper, Lantern and K9-X Forced Release supports the grind. The main weaknesses are the absence of any recorded boards (so combo floor and ceiling are text-only inference), no side deck, and a Master Duel-only format with no dated meta sample, so Meta Power stays null. Archetype popularity and the usage statistics confirm the list is the standard K9 build but earned no points in themselves, and no card scores were averaged into the deck score.

Dimension scores

How the score was computed

Strategy profile: Midrange, meta-neutral (D13 dropped and remaining weights renormalized to 95). Structural ≈ 64, Going First ≈ 66, Going Second ≈ 64, Meta = provisional, Tournament Reliability ≈ 60. Modifiers: Single-copy Limited cards in the main deck (-2); No side deck registered (-1). Final formula: 0.80*Structural + 0.20*TournamentReliability + ContextModifiers (Meta provisional) = 0.80*64.3 + 0.20*60 - 3 ≈ 60

Probability & combo summary

• Opening a starter: P(≥1) ≈ 0.74 · 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

• Dense starter redundancy: five K9 Level 5 starters with 1 to 3 copies each
• Strong interaction layer: 6 hand traps and 9 negation-text cards
• Recursion and searchers keep the deck playing after one interruption
• Boss Xyz are large (2,500 to 3,300 ATK) with destruction and negation effects

Weaknesses

• No recorded boards, so the combo ceiling and median are text inference only
• No side deck, so post-side plans cannot be judged
• Two Limited single-copy spells sit in the main deck
• Extra Deck mixes K9 bosses with off-archetype Xyz, diluting the material routes

Critical choke points

• Single-copy Instant Fusion and Heavy Storm: each is one card, so a missing copy removes the option
• Both Umbral Horror and K9 Xyz bosses depend on a 2-material Xyz setup in the same turn

Recommended changes

Evidence & confidence

• Verified: Main 40 / Extra 15 / Side 0 within Master Duel size rules; Heavy Storm and Instant Fusion Limited, 1 copy each, legal; Copy histogram and type spread from the export; Hypergeometric draw odds from the Main Deck
• Inferred: Starter access and redundancy (D1); Hand-trap and brick estimates (D2, D5, D7); Boss ceiling and closing power from card text (D3, D9)
• Provisional: Meta fit (D13) and Meta Power (null); Post-side plan (D12)
• Data gaps: No combos supplied: combo floor, median and ceiling are text-only inference No tournament link: archetype meta-share and per-pilot record are absent No side deck registered: post-side adaptability cannot be measured No win-rate telemetry: going-first, going-second and matchup rates are unknown Usage statistics mismatch: Extra Deck cards that are present in this deck (K9-X Werewolf, K9-66X Jacks, K9-17 Ripper, Number 104, Number C104, Super Starslayer TY-PHON) show in_this_deck=false, so the 20% core-present figure understates coverage and is not used as evidence Meta Power is provisional without a dated metagame sample