K9 Deck #772308 — Yu-Gi-Oh! OCG
43 Main, 15 Extra, incl. Mementotlan Angwitch x3, Mementotlan Dark Blade x3, Mementotlan Tatsunootoshigo x3. Created Oct 21, 2026 by YGO Mod.
Created by: YGO Mod (20517634)
Created On: 10/21/2026
Main Deck (43)
- K9-17 Izuna x1
- K9-66a Jokul x1
- K9-66b Lantern x1
- K9-ØØ Lupis x1
- Mementoal Tecuhtlica - Combined Creation x1
- Mementotlan Akihiron x1
- Mementotlan Angwitch x3
- Mementotlan Dark Blade x3
- Mementotlan Ghattic x1
- Mementotlan Goblin x2
- Mementotlan Mace x1
- Mementotlan Shleepy x1
- Mementotlan Tatsunootoshigo x3
- Mementotlan-Horned Dragon x1
- Mulcharmy Fuwalos x2
- Ash Blossom & Joyous Spring x2
- "A Case for K9" x1
- Forbidden Droplet x2
- Goblin Biker Grand Breakout x2
- Goblin Biker Grand Entrance x1
- Harpie's Feather Duster x1
- K9-LC Release Restraint x1
- K9-X Forced Release x1
- Mementomictlan x1
- Mementotlan Bone Party x2
- Mementotlan Fusion x2
- Reinforcement of the Army x1
- Infinite Impermanence x2
- Mementotlan Cranium Burst x1
Extra Deck (15)
- Guardian Chimera x1
- Mementomictlan Tecuhtlica - Creation King x2
- Mementotlan Twin Dragon x1
- Predaplant Dragostapelia x1
- Herald of Mirage Lights x1
- Relinquished Anima x1
- CXyz N.As.Ch. Knight x1
- K9-17 "Ripper" x1
- K9-ØØ "Hound" x1
- K9-X "Werewolf" x1
- N.As.H. Knight x1
- Number 104: Masquerade x1
- Number C104: Umbral Horror Masquerade x1
- Super Starslayer TY-PHON - Sky Crisis x1
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Deck — Deck Power Evaluation
Final Contextual Deck Power: 54/100 (±8 · Confidence: Medium)
| Overall score | Value |
|---|---|
| Structural Deck Power | 59 |
| Going First | 62 |
| Going Second | 58 |
| Meta Power | provisional |
| Tournament Reliability | 50 |
- Primary strategy: Combo
- Secondary strategies: Midrange, Toolbox
- Format: ocg
Legality
Main 43 / Extra 15 / Side 0 — status: Legal.
Identity & game plan
- Win condition: Fusion or Xyz boss from the Extra Deck, chiefly Mementomictlan Tecuhtlica - Creation King (3000 ATK) and Mementoal Tecuhtlica - Combined Creation (5000 ATK), backed by K9 Xyz beatdown (Inferred); K9 Xyz monsters (K9-00 Hound, K9-X Werewolf route absent) and Memento Link/Fusion beaters such as Mementotlan Twin Dragon (Inferred)
- Turn 1 (going first): Normal Summon a Memento Level 3-5 monster, search a Memento or K9 card with a searcher (15 searcher-text cards, P(at least one in hand of 5) = 0.90), then Fusion or Xyz Summon toward a boss (Inferred)
- Turn 2 (going second): Use the 6-card hand to hold Ash Blossom or Infinite Impermanence (P(at least one hand trap in 6) = 0.46), then rebuild through Memento recursion (Inferred)
- Recovery: Recover from the GY via Mementotlan Ghattic, Mementotlan Akihiron and the Memento GY-to-hand searches; the K9 Xyz route can be re-entered from the Extra Deck (Inferred)
- After siding: None: the deck runs 0 side cards in an OCG format that allows up to 15, so there is no post-side plan (Verified)
Why it scores here
The deck is scored as a system: it opens a live starter often (15 searcher-text cards give about 0.90 chance of at least one in a 5-card opening hand, and the archetype core has about 0.75 chance), converts through two Extra Deck engines (Memento Fusion/Creation King and K9 Xyz), and closes with high-ATK bosses (Mementoal Tecuhtlica 5000, Creation King 3000). Its interaction is layered across four hand traps, two Forbidden Droplets, Harpie's Feather Duster and Mementotlan Cranium Burst, which is why end-board and going-second scores sit above the baseline. The score is held down by the 17.2% exact-name purity (Memento 22 copies and K9 10 copies, plus generic and Goblin staples, so two engines compete for the same slots), by the complete absence of recorded boards (combo ceiling and median are text-only Inferred reads), and by an empty side deck. Popularity did not earn points: the K9 usage stats only confirm the list is real, and no card scores were averaged into the deck score.
Dimension scores
| # | Dimension | Score | Evidence |
|---|---|---|---|
| D1 | Engine Accessibility & Consistency | 68 | P(at least one starter in 5 cards) about 0.90 for searchers, archetype core about 0.75; two engines share the deck (Inferred) |
| D2 | Opening-Hand Quality & Brick Management | 52 | Proxy brick rate about 0.25 with the core missing from the hand; several cards need specific board states (Inferred) |
| D3 | Combo Conversion & Ceiling | 62 | Creation King and Mementoal Tecuhtlica give a high boss ceiling; no parseable boards to confirm conversion (Inferred) |
| D4 | Combo Floor & Median Output | 48 | No recorded boards, so the median output is unknown and rated low on text alone (Inferred) |
| D5 | Interruption Resilience & Route Redundancy | 60 | Two independent engines (Memento Fusion and K9 Xyz) and redundant searchers give alternate routes after one interruption (Inferred) |
| D6 | Resource Economy, Recovery & Grind | 60 | Memento GY recursion (Ghattic, Akihiron, Bone Party) recovers resources; no measured resource data (Inferred) |
| D7 | End-Board & Interaction Quality | 70 | Four hand traps, two Forbidden Droplet, Harpie's Feather Duster and Cranium Burst; layered negation text (Verified card text, Inferred quality) |
| D8 | Going-Second & Board-Breaking Power | 60 | Hand-trap P(at least one in 6 cards going second) 0.46 plus Droplet and Duster for board breaking (Inferred) |
| D9 | Offensive Pressure & Closing Power | 70 | Boss ATK values 3000 to 5000 from Creation King, Mementoal Tecuhtlica, TY-PHON, Horned Dragon and Twin Dragon (Verified stats) |
| D10 | Main Deck Efficiency & Flexibility | 50 | 43 main cards with 29 distinct, 18 singletons, 17.2% exact-name purity and four off-archetype staples (Verified) |
| D11 | Extra Deck Efficiency & Coverage | 60 | Full 15-card Extra Deck with 5 Fusion, 8 Xyz and 2 Link; good coverage but two engines compete for Extra slots (Verified composition, Inferred use) |
| D12 | Side Deck Adaptability | 15 | No side deck (0 of 15 allowed), so there is no post-side plan (Verified) |
| D13 | Matchup Coverage & Format Fit | 50 | No tournament or meta-share data; treated as a neutral provisional read (Provisional) |
| D14 | Pilotability & Error Tolerance | 55 | Multiple engines and many conditional summons create decision points; high mechanical load (Inferred) |
How the score was computed
Strategy profile: Combo. Structural ≈ 59, Going First ≈ 62, Going Second ≈ 58, Meta = provisional, Tournament Reliability ≈ 50. Modifiers: engine conflict (-3). Final formula: 0.80*Structural + 0.20*TournamentReliability + ContextModifiers (Meta provisional, null)
Probability & combo summary
- Opening a starter: P(≥1) ≈ 0.9 · 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
- Searcher density (15 searcher-text cards) makes a live starter likely
- Two Extra Deck engines (Memento Fusion and K9 Xyz) give route redundancy
- Four hand traps and multiple negation effects give layered interaction
- High-ATK bosses (3000 to 5000) close games once a board is established
Weaknesses
- 17.2% exact-name purity: Memento and K9 compete for slots and materials
- No side deck in an OCG format allowing 15
- No recorded boards, so combo ceiling and median are unverified
- Heavy singleton count (18 of 29 distinct cards) raises brick risk
Critical choke points
- Mementoal Tecuhtlica - Combined Creation (1 copy) is the 5000 ATK boss and its Special Summon needs five other differently named Memento monsters
- Mementomictlan (1 copy) and K9-LC Release Restraint (1 copy) are single-copy enablers for their engines
Recommended changes
| Priority | Remove | Add | Reason |
|---|---|---|---|
| 1 | 1 off-archetype staple (for example one Mulcharmy Fuwalos) to cut engine conflict | Side deck of up to 15 cards with anti-engine answers for the expected OCG meta | The deck has no side deck, so it has no post-side plan in a best-of-3 OCG match; a side deck is the most direct fix for D12 (Verified side count; plan Inferred) |
| 2 | 1 Harpie's Feather Duster | 1 more searcher or a second copy of a core Memento monster | Duster is a Limited single-copy card with narrow value; a searcher or core copy raises consistency (Inferred) |
Evidence & confidence
- Verified: Legal status: 43 Main, 15 Extra, 0 Side within OCG size rules; no copy-limit violations; Banlist: Limited and Semi-Limited copy counts all within legal limits; Card text and stats for the listed cards; Archetype purity 17.2% and the Memento/K9 spread
- Observed: Usage statistics confirm K9 core cards (for example K9-00 Lupis 85%, K9-66a Jokul 80%) are played across the archetype
- Inferred: Starter and brick estimates from hypergeometric draws; Combo ceiling and going-first/second plans from card text; Engine conflict modifier; Interaction density and resilience reads
- Provisional: Meta power (null) and matchup/format fit (D13)
- 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 and brick rates are Inferred or Unknown Meta power is provisional unless a dated metagame sample is supplied
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