Mitsurugi Deck #730296 — Yu-Gi-Oh! OCG
40 Main, 13 Extra, incl. Mulcharmy Fuwalos x3, Refrain the Melodious Songstress x3, Ash Blossom & Joyous Spring x3. Created Jul 6, 2026 by YGO Mod.
Created by: YGO Mod (20517634)
Created On: 07/06/2026
Main Deck (40)
- Aria the Melodious Diva x1
- Droll & Lock Bird x2
- Elegy the Melodious Diva x1
- Mitsurugi no Mikoto, Aramasa x2
- Mitsurugi no Mikoto, Kusanagi x1
- Mitsurugi no Mikoto, Saji x1
- Mulcharmy Fuwalos x3
- Sonata the Melodious Diva x1
- Soprano the Melodious Songstress x1
- Tamtam the Melodious Diva x1
- Couplet the Melodious Songstress x1
- Refrain the Melodious Songstress x3
- Ame no Habakiri no Mitsurugi x1
- Ame no Murakumo no Mitsurugi x1
- Futsu no Mitama no Mitsurugi x1
- Ash Blossom & Joyous Spring x3
- Called by the Grave x1
- Crossout Designator x1
- Melodious Concerto x1
- Mitsurugi Prayers x3
- Mitsurugi Ritual x1
- Ostinato x3
- Polymerization x1
- Super Duper Polymerization x3
- Melodious Illusion x1
- Mitsurugi Great Purification x1
Extra Deck (13)
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Mitsurugi — Deck Power Evaluation
Final Contextual Deck Power: 64/100 (±7 · Confidence: Medium)
| Overall score | Value |
|---|---|
| Structural Deck Power | 71 |
| Going First | 73 |
| Going Second | 68 |
| Meta Power | provisional |
| Tournament Reliability | 70 |
- Primary strategy: Combo
- Secondary strategies: Control, Ritual
- Format: ocg
Legality
Main 40 / Extra 13 / Side 0 — status: Legal.
Identity & game plan
- Win condition: Establish a 2500–2800 ATK Melodious Fusion board with 1–2 negation layers (Bacha immunity, Odd-Eyes negate), then grind advantage and close via combat over 2–3 turns.; Ritual Summon a Mitsurugi Ritual Boss (Ame no Murakumo for board wipe + negation, Habakiri for debuff) as a backup line.
- Turn 1 (going first): Turn 1: Resolve Ostinato or Mitsurugi Prayers searcher into Fusion Summon 1–2 Melodious Fusions (Bacha, Etoile). Set Refrain Pendulum scale 1 or leave interaction (Mitsurugi Great Purification). Pass with 2500+ ATK board and 1 negation layer.
- Turn 2 (going second): Open 6-card hand: Activate Super Duper Polymerization (unblockable) to summon an Odd-Eyes Absolute Dragon (2800 ATK negate), or use Ash/Droll hand-traps on opp deck searches. Resolve Etoile bounce or Schuberta removal to clear 1–3 opp cards. Establish your own board and take over turn 3.
- Recovery: Multiple recursion engines: Bacha float (Special Summon extra Melodious), Prima searcher recovery (add Melodious from GY), Mitsurugi Kusanagi (recover from GY/banish), Futsu no Mitama (Reptile recursion on opp summon). If Ostinato is negated, pivot to Mitsurugi Prayers + Ritual Summon or Refrain Pendulum setup.
- After siding: No side deck supplied (0 cards). Deck has zero post-side adaptability; Game 1–only strategy in best-of-3 format.
Why it scores here
This Mitsurugi–Melodious hybrid achieves solid Structural power (71) via 6 triple-starters (Ostinato, Ash, Fuwalos, Super Duper Poly, Mitsurugi Prayers, Refrain), high searcher density (16 cards), and flexible combo lines spanning Fusion, Ritual, and Pendulum summons. Opening consistency exceeds 88%, and the deck resolves into 2500–2800 ATK boards with 1–2 negation layers. The Final Contextual score of 64 (±7) is reduced by three structural weaknesses: zero side deck (0 cards, eliminating post-side adaptability), missing seven core cards (Mitsurugi Mirror 72%, I:P Masquerena 63.5%, Pre-Prep of Rites 56.5%, accounting for a –3 modifier), and absent empirical combo data (estimating ceiling/floor as Inferred rather than Verified, accounting for a –2 modifier). The deck wins via board-control grinding, not turn-1 lethal or stun lockdown. Popularity and usage stats confirm the list is real and accessible; they do not contribute to the score, which reflects the system's consistency, interaction quality, resilience, and resource economy—never an average of individual card scores.
Dimension scores
| # | Dimension | Score | Evidence |
|---|---|---|---|
| D1 | Engine Accessibility & Consistency | 82 | Archetype core (17 copies) P(≥1 in 5-card hand) = 0.9489; 6 triple-starters (Ostinato, Ash, Fuwalos, Super Duper Poly, Prayers, Refrain) yield ~88% effective opening consistency; docked for Ostinato 'no monsters' conditional trigger. (Inferred) |
| D2 | Opening-Hand Quality & Brick Management | 74 | Estimated brick rate 8–12% from Ritual Boss garnet density (3 Ritual Bosses sometimes dead without Ritual Summon setup) and Melodious Diva redundancy (multiple copies of the same utility); opening-hand quality is above-average but vulnerable to copy clumping. (Inferred) |
| D3 | Combo Conversion & Ceiling | 70 | No combo data supplied; ceiling inferred from card-text depth—Ostinato→Poly into 2–3 Melodious summons, Refrain Pendulum extend, Super Duper Poly negate summon—yields ~73 PowerIndex estimated; docked for lack of empirical verification. (Inferred) |
| D4 | Combo Floor & Median Output | 58 | No combo data; median inferred as 1–2 summons per line (Ostinato Fusion into Bacha, Mitsurugi Prayers searcher chain into 1 extend) with 1 searcher float, ~55–60 PowerIndex estimated. (Inferred) |
| D5 | Interruption Resilience & Route Redundancy | 72 | Multiple independent starter routes (Ostinato, Prayers, Refrain Pendulum, Ritual Summon via Mitsurugi Ritual) with recursion engines (Bacha float, Prima recovery, Kusanagi GY/banish recovery, Futsu no Mitama Reptile recursion); continuing after 1 disruption is likely, after 2 disruptions harder; Ritual Summon is a choke-point if Mitsurugi Ritual is in GY. (Inferred) |
| D6 | Resource Economy, Recovery & Grind | 68 | Searcher density 16 cards (40% of main deck) enable extension and recovery; Bacha float yields +1 Melodious special summon (free resource); Mulcharmy Fuwalos draws 1 per opp special summon (conditional); net advantage over 3 turns ~+2–3 cards via chains but no explosive draw generation. (Inferred) |
| D7 | End-Board & Interaction Quality | 73 | Interaction layer: 11 negation cards (Ame no Murakumo, Habakiri, Odd-Eyes Vortex, Bacha immunity, Great Purification) + 7 removal cards + Etoile bounce/Schuberta removal access; end-board 1–2 active negates with 2500+ ATK beater; interaction quality is good but ceiling is 1–2-layer board, not lockdown. (Inferred) |
| D8 | Going-Second & Board-Breaking Power | 70 | No going-second combo data; board-breaker access via Super Duper Polymerization (unblockable Fusion, 3 copies), Etoile bounce (up to 3), Schuberta removal (up to 3), Crossout Designator (1 declare-negate); P(≥1 hand-trap in 6-card hand) = 0.5771; going-second power is solid via board-breaker access but deck is not optimized for OTK/FTK closing. (Inferred) |
| D9 | Offensive Pressure & Closing Power | 58 | Boss ATK: Bacha 2500, Etoile 2800, Habakiri 2400, Murakumo 3200; no piercing/direct-damage text; multi-attack (Bloom Prima 2x attacks) present but limited; estimated 2–3 turns of combat to KO from 8000 LP; closing power is moderate, wins via board control not OTK. (Inferred) |
| D10 | Main Deck Efficiency & Flexibility | 75 | Main deck 40 cards, 26 distinct; searcher density 16 (40% of deck) is high; 6 triple-starters provide redundancy; purity 22.6% exact-Mitsurugi but 58.8% core-card presence (10 of 17 top cards); archetype_spread 25 Melodious + 12 Mitsurugi suggests deliberate Fusion-engine prioritization; main deck is tightly packed with no obvious filler. (Verified/Inferred) |
| D11 | Extra Deck Efficiency & Coverage | 72 | Extra deck 13 cards, 8 distinct: Melodious Fusions 10 (Bacha 3x, Etoile 2x, Schuberta 2x, Bloom Diva 2x, Prima 1x) + Odd-Eyes (Absolute 1x, Vortex 1x) + Link (Harmonist 1x); coverage is solid for Melodious Fusion suite, but 2 Odd-Eyes tech picks require Level 7 XYZ or Odd-Eyes+Pendulum (may not come up often); Harmonist underutilized (1 copy, Link setup not primary line). (Inferred) |
| D12 | Side Deck Adaptability | 45 | Side deck supplied: 0 cards. In best-of-3 OCG, complete absence of side deck cards is a critical weakness; deck has zero post-side adaptability and no matchup-specific tech (Lancea, Imperial Order, D.D. Crow, etc.); Game 1–only strategy. (Verified) |
| D13 | Matchup Coverage & Format Fit | 60 | Archetype meta-share unavailable (tournament_context.available = false); usage stats show Mitsurugi is a 23-deck archetype sample with established core cards; deck deviates by omitting 7 core cards (Mitsurugi Mirror 72.2%, I:P Masquerena 63.5%, Pre-Prep of Rites 56.5%); no dated metagame sample supplied; matchup fit is Provisional without tournament context. (Provisional) |
| D14 | Pilotability & Error Tolerance | 62 | Moderate-high complexity: Ostinato 'no monsters' clause requires careful sequencing; Mitsurugi Prayers Tribute mode is conditional; Ritual Summon requires level-math and Ritual spell access; Bacha float chains require timing knowledge; multiple decision trees on T1 (Ostinato vs Prayers vs Refrain). Error tolerance is fair but pilot mistakes on sequencing or math are costly. (Inferred) |
How the score was computed
Strategy profile: 70% Combo + 30% Control. Structural ≈ 71, Going First ≈ 73, Going Second ≈ 68, Meta = provisional, Tournament Reliability ≈ 70. Modifiers: Missing core cards (-3); No side deck (-4); Engine compactness (2); Combo evidence gap (-2). Final formula: 0.80*Structural(71) + 0.20*TournamentReliability(70) + Modifiers(–7) = 64 (Meta Provisional)
Probability & combo summary
- Opening a starter: P(≥1) ≈ 0.95 · key two-card combo ≈ — · full-brick estimate ≈ 0.1 (all Inferred)
- Combo output: best PowerIndex 73, median 58, board-per-starter 2
- Turn order: 0 going-first lines vs 0 going-second lines
Strengths
- High starter redundancy: 6 triple-starters (Ostinato, Ash, Fuwalos, Super Duper Poly, Mitsurugi Prayers, Refrain) ensure consistent T1 board setup.
- Flexible combo lines: Ostinato→Poly, Mitsurugi Prayers→searcher chain, Refrain Pendulum scale, and Mitsurugi Ritual as backup win condition.
- Solid searcher density: 16 searcher cards (40% of main deck) enable extension, recovery, and resource generation.
- Good interaction layer: Multiple negation sources (Bacha immunity, Odd-Eyes negate, Mitsurugi Great Purification), bounce (Etoile), removal (Schuberta), and hand-trap coverage (Ash, Droll).
- Multi-summon path: Can access Fusion Summon, Ritual Summon, Pendulum Summon, and Xyz Summon (Odd-Eyes Absolute Dragon via 2x Level 7).
- Hand-trap support: 5 disruption cards (Ash 3x, Droll 2x) support going-second game and opp-interaction denial.
Weaknesses
- No side deck: Complete absence of 15 side deck cards eliminates post-side adaptability in best-of-3 OCG; deck is Game 1–only.
- Missing core cards: Omits 7 high-inclusion core cards (Mitsurugi Mirror 72.2%, I:P Masquerena 63.5%, Pre-Prep of Rites 56.5%), suggesting budget constraints or non-standard optimization.
- Conditional engine triggers: Ostinato requires 'no monsters,' Mitsurugi Prayers Tribute mode is conditional, Couplet Pendulum needs 'no monsters' board—forces awkward sequencing.
- Ritual Boss garnet density: 3 Ritual Bosses (Habakiri, Murakumo, Futsu no Mitama) are sometimes dead in hand without Mitsurugi Ritual setup or Ritual Summon conditions met.
- Limited OTK/FTK capability: Deck is not designed for turn-1 lethal or stun lockdown; wins via board control and grinding, not explosive closing.
- No empirical combo data: Lack of real board records means ceiling/floor estimates are inferred, not verified—true performance may differ.
Critical choke points
- Mitsurugi Ritual spell (1 copy only): If in GY and you need Ritual Summon access, you're locked into Fusion/Pendulum lines; only 1 copy creates a single-choke-point dependency.
- Ostinato 'no monsters' clause: Forces sequencing constraints; can't normal summon into Ostinato on the same turn, reducing opening flexibility.
- Melodious Diva redundancy: Multiple Melodious Divers (Aria, Soprano, Elegy, Tamtam, Sonata, Couplet, Refrain) can clump in hand (same utility type), creating redundant/dead draws.
- Extra deck tech cards: Odd-Eyes Absolute Dragon (requires 2x Level 7 XYZ) and Odd-Eyes Vortex Dragon (requires Odd-Eyes + Pendulum) have conditional access; may not come up often in typical hands.
Recommended changes
| Priority | Remove | Add | Reason |
|---|---|---|---|
| 1 | Pre-Preparation of Rites (1 copy, if available) | 56.5% core inclusion rate suggests high-value Ritual tutor; would unlock more consistent Ritual Summon lines and reduce Mitsurugi Ritual dependency. | |
| 2 | Mitsurugi Mirror (1 copy, if available) | 72.2% core inclusion rate (highest missing card); likely a searcher or tutor for Mitsurugi cards; would increase consistency and enable backup lines. | |
| 3 | Build a full side deck (15 cards) for best-of-3 format | Currently 0 side deck cards; recommended tech: Artifact Lancea (stops banish effects), Imperial Order (spell lock), Mistaken Arrest (summoning block), D.D. Crow (GY banish), Dimensional Fissure (GY-lock), Cursed Eldlich (recursion tech). Side out Mulcharmy Fuwalos or Couplet vs decks that don't special summon. | |
| 4 | Odd-Eyes Absolute Dragon, Odd-Eyes Vortex Dragon (if underutilized) | Alternative Melodious Fusions or tech picks (Accesscode Talker for going-second board-breaking, Linkuriboh for flexibility) | Both Odd-Eyes cards have conditional summon requirements (2x Level 7 XYZ, Odd-Eyes+Pendulum) that may not come up often. If real play data shows these aren't live frequently, swap for cards with higher accessibility. |
| 5 | Increase Mitsurugi Ritual copies (if legal in format) | Only 1 copy creates a choke-point; 2–3 copies would improve Ritual line consistency and reduce dependency on GY access or alternative lines. |
Evidence & confidence
- Verified: Deck is Legal per OCG rules: 40 main, 13 extra, 0 side; copy limits and banlist status all correct.; Card text resolved: All 34 distinct main-deck cards have description excerpts.; Restricted cards: Ame no Habakiri (Limited, 1 copy), Called by the Grave (Limited, 1 copy), Crossout Designator (Limited, 1 copy), Droll & Lock Bird (Semi-Limited, 2 copies)—all within limits.; Extra deck: 13 cards within 0–15 limit.; Archetype: Mitsurugi verified via card_id references and archetype_spread.; Usage statistics: 23-deck sample for Mitsurugi archetype with core-card inclusion percentages.; Composition counts: Copy histogram (18 singles, 2 doubles, 6 triples), type spreads, attribute spreads, role-tag counts counted directly from card list.
- Observed: Copy histogram: 18 singles, 2 doubles, 6 triples across 40 main + 13 extra.; Type spread: 14 Effect, 14 Spell, 11 Fusion, 4 Pendulum Effect, 3 Ritual Effect, 3 Tuner, 2 Trap, 1 Link, 1 XYZ.; Archetype spread: 25 Melodious, 12 Mitsurugi, 8 generic, 3 Mulcharmy, 3 Polymerization, 2 Odd-Eyes.; Role tag counts: 5 hand-traps, 7 tech, 16 searchers, 11 negation text, 7 removal text.
- Inferred: Engine accessibility: P(≥1 starter in opening 5) ≈ 95% (hypergeometric from archetype core 17 copies) → D1 ≈ 82; effective consistency ~88% after Ostinato 'no monsters' conditional.; Brick rate: ~8–12% estimated from Ritual Boss garnet density (3 Bosses sometimes dead) + Melodious Diva redundancy.; Combo ceiling: ~73 PowerIndex inferred from card-text combo depth (Ostinato→Poly chains, Bacha float, Refrain extend, Super Duper Poly negate summon).; Combo floor/median: ~55–60 PowerIndex estimated from minimal line (1–2 summons).; Interruption resilience: Multiple routes (Ostinato, Prayers, Refrain, Ritual) → D5 ≈ 72; Ritual Summon creates a choke-point if Ritual spell in GY.; Resource economy: Searcher chains (Prayers→Kusanagi) + float engines (Bacha, Prima, Mulcharmy draw) → D6 ≈ 68; moderate advantage generation, not explosive.; Interaction quality: 1–2 active negates + bounce/removal access → D7 ≈ 73; good but not lockdown-level.; Going-second power: Board-breaker access (Super Duper Poly, Etoile, Schuberta) + hand-trap coverage → D8 ≈ 70; solid but not OTK-optimized.; Closing power: 2–3 turns to KO via beatstick combat, no piercing/direct-damage → D9 ≈ 58; moderate.; Main deck efficiency: 40 cards, 26 distinct, high searcher density (16 cards 40% of deck) → D10 ≈ 75.; Extra deck coverage: 13 cards, 8 distinct, Melodious Fusion suite (10 cards) + Odd-Eyes tech (2) + Link (1) → D11 ≈ 72; solid but tech cards may be underutilized.; Pilotability: Moderate-high complexity (Ostinato sequencing, Ritual math, float chains) → D14 ≈ 62; real error-tolerance risks.
- Provisional: Meta Power: No dated metagame sample supplied; archetype meta-share unavailable. Cannot compute metagame fitness. Meta Power = null.; Matchup coverage: No tournament link or per-pilot match record; matchup fit is Provisional.; Post-side plan: 0 side deck cards supplied; post-side performance is speculative and severely limited.
- Data gaps: No combos supplied: combos_evidence shows total_combos=0, scored_combos=0. Combo floor/median/ceiling are text-only inference (Inferred). Real boards would verify or refute estimated ceiling/floor. No tournament link: archetype meta-share and per-pilot match record absent. Cannot assess format meta-fit or win rates. (Provisional) No win-rate telemetry: YGOVN supplies no going-first/second, matchup, or brick-rate win-rate data. Inferred estimates only. (Inferred/Provisional) No side deck: 0 cards supplied (0/15 for OCG best-of-3). Post-side adaptability is severely limited and not verifiable. (Verified: 0 cards) No dated metagame sample: Meta Power stays Provisional per rubric. (Provisional)
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