Mitsurugi Deck #770321 — Yu-Gi-Oh! Master Duel

Deck — Deck Power Evaluation

Final Contextual Deck Power: 53/100 (±8 · Confidence: Low)

• Primary strategy: Midrange
• Secondary strategies: Toolbox, Tempo, Ritual, Fusion, Xyz, Link
• Format: master-duel

Legality

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

Identity & game plan

• Win condition: Reptile ritual and Extra Deck bosses: Ame no Murakumo no Mitsurugi (3200 ATK, on-summon destroy-all text), Galaxy-Eyes Full Armor Photon Dragon (4000) and Number C107 (4500) once materials are set up.; Ame no Habakiri no Mitsurugi (2400 ATK, -800 ATK to opposing monsters) and Futsu no Mitama no Mitsurugi, which revives a Reptile from the GY when the opponent Special Summons.
• Turn 1 (going first): Search a Mitsurugi piece with Mitsurugi no Mikoto, Pre-Preparation of Rites or Mitsurugi Prayers, then Ritual Summon a Reptile boss via Mitsurugi Ritual or Mitsurugi Mirror, keeping hand traps for the opponent's turn.
• Turn 2 (going second): Hold hand traps (Ash Blossom, Droll & Lock Bird, Maxx C, Effect Veiler, Ghost Ogre, Infinite Impermanence, Crossout Designator) to disrupt the opponent's first summon or search, then rebuild through Mitsurugi searchers and the ritual line.
• Recovery: Mitsurugi no Mikoto effects add Mitsurugi cards back after Tribute, Mitsurugi Great Purification revives a Reptile from the GY, and Futsu no Mitama revives one on the opponent's summon; Mulcharmy monsters draw on summons.
• After siding: None: side_count is 0 and Master Duel has no side construction in this evidence, so no post-side plan can be scored.

Why it scores here

The deck is scored as a system: a 12-copy Mitsurugi core gives roughly an 85% chance of at least one Mitsurugi-named card in a 5-card opening hand, and a 9-card hand-trap suite gives about 81% of at least one in a 6-card going-second hand, which is why the going-second interaction and end-board scores are the strongest. Its ceiling comes from the three Reptile ritual monsters and the Rank 4/8/9 and Fusion bosses, but there is no recorded combo data, so floor and median are inference-only and deliberately capped. The main deck is split across three sub-engines (Mitsurugi ritual, Aleister/Invoked, Mulcharmy), exact-name purity is 21.8%, and the Extra Deck is fully used, which costs points for coherence and engine conflicts. The 100% inclusion of the archetype staples and the single guide's praise for cheapness were not counted as power; no card scores were averaged.

Dimension scores

How the score was computed

Strategy profile: 0.70 Midrange / 0.30 Toolbox. Structural ≈ 62, Going First ≈ 66, Going Second ≈ 72, Meta = provisional, Tournament Reliability ≈ 54. Modifiers: engine compactness (-3); engine conflicts (-3); banlist exposure (-2). Final formula: 0.80*Structural + 0.20*TournamentReliability + ContextModifiers (Meta provisional; no dated metagame sample)

Probability & combo summary

• Opening a starter: P(≥1) ≈ 0.85 · 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

• Nine hand traps give going-second interaction and multiple answers to the opponent's first summon or search
• Three Mikoto searchers and two Mitsurugi ritual enablers give several starting routes
• Three Reptile ritual monsters plus Xyz Rank 4/8/9 and Fusion bosses give high ceilings
• All 15 Extra slots are functional across several summon types

Weaknesses

• Exact-name purity 21.8%; three sub-engines share the main deck
• Two Mitsurugi ritual spells, with Pre-Preparation of Rites as the only extra fetch (0.34 in opener)
• No side deck, so no adaptation (side_count 0)
• Droll & Lock Bird and GY banish are known threats in the guide

Critical choke points

• Mitsurugi Ritual / Mitsurugi Mirror: the ritual line needs a ritual spell plus tributes
• Mitsurugi Prayers: a Limited single copy and a Mitsurugi searcher
• Droll & Lock Bird lock on search-heavy turns

Recommended changes

Evidence & confidence

• Verified: Legal: 40 main, 15 extra, 0 side within master-duel size rules; All five restricted cards are within legal copy limits; Card text for all 40 main and 15 extra cards is resolved; Core-card presence 15 of 25 from usage stats; Composition counts (hand trap 9, searcher text 18, ritual 2+4, Xyz 8, Fusion 4, Link 3)
• Inferred: At least one Mitsurugi-named card in opener about 0.85 going first and 0.90 going second; Hand-trap coverage 0.81 in a going-second 6-card hand; Engine coherence and conflict read from composition and text; Interaction density and board-breaking reads from card text
• Provisional: Meta power (null); Matchup fit and format standing (no tournament link); Side-deck adaptability (no side cards)
• Data gaps: No combos supplied; floor, median and ceiling are text-only inference No tournament link; archetype meta-share and per-pilot records absent No win-rate telemetry (going-first/second, matchup, brick/starter rates) Meta power is Provisional without a dated metagame sample No side deck, so post-side plan cannot be evaluated Only one guide (no section structure), so guide weight is low