Millennium Deck #768492 — Yu-Gi-Oh! OCG

40 Main, 15 Extra, incl. Mulcharmy Fuwalos x3, Ame no Habakiri no Mitsurugi x3, Mitsurugi Ritual x3. Created Oct 20, 2026 by YGO Mod.

Deck Millennium OCG

Created by: YGO Mod (20517634)

Created On: 10/20/2026

 
 


Official AI Deck Power Analysis
MidrangeConfidence: LowEvaluated Oct 20, 2026
20± 8/ 100
Power Score
Structural 44
Reliability 35
Going First 40
Going Second 46

Deck — Deck Power Evaluation

Final Contextual Deck Power: 20/100 (±8 · Confidence: Low)

Overall score Value
Structural Deck Power 44
Going First 40
Going Second 46
Meta Power provisional
Tournament Reliability 35
  • Primary strategy: Midrange
  • Secondary strategies: Combo
  • Format: ocg

Legality

Main 40 / Extra 15 / Side 0 — status under the rules at evaluation time: Illegal. 3 violation(s).

Identity & game plan

  • Win condition: Ritual-summon Ame no Murakumo no Mitsurugi (3200 ATK) or Futsu no Mitama no Mitsurugi through Mitsurugi Ritual and Reptile tributes, then press the board; Extra Deck Link/Xyz/Synchro boss monsters (Galaxy-Eyes Photon Lord, Chaos Angel, Fiendsmith's Lacrima) after a Bystial or Fiendsmith line
  • Turn 1 (going first): Search and Ritual-summon a Mitsurugi boss; the 3-copy Mitsurugi Ritual is the only card that reliably opens the line (about 34% in a 5-card opening)
  • Turn 2 (going second): Hold Ash Blossom, Maxx C and Ghost Ogre to answer the opponent's first summon, then convert with a Ritual or Extra Deck boss
  • Recovery: Mitsurugi and Fiendsmith searchers (about 19 searcher-text cards) and GY recursion (Mitsurugi Ritual, Mitsurugi Prayers, Lacrima) rebuild the starter after a single disruption
  • After siding: Not evaluable: the deck runs no side deck, so there is no post-side plan

Why it scores here

The deck's structure is a Mitsurugi ritual engine supported by about 19 searcher-text cards, so it can usually find a starter but opens its boss line only about a third of the time from a 5-card hand (Mitsurugi Ritual at 3 copies, Inferred). Its ceiling comes from Ame no Murakumo and the Extra Deck bosses, and its interaction comes from seven hand traps, Maxx C and Ash Blossom, but no recorded boards exist, so combo floor and median are scored from text only. The deck is Illegal: three Forbidden cards are over the copy limit, so it is capped at 20 and read as theoretical/structural only. It has no side deck, and the archetype core is missing (14.3% of the usage-stat core present), so popularity earned no points. The score comes from consistency, interaction and closing power on the system, not from averaging the individual card scores.

Dimension scores

# Dimension Score Evidence
D1 Engine Accessibility & Consistency 45 P(at least one Mitsurugi Ritual in 5-card hand) about 0.34; searcher density 19 cards gives recovery (Inferred)
D2 Opening-Hand Quality & Brick Management 40 Ritual, spell and Trap redundancy is high, but the archetype core group is open in only 0.58 of hands and 14 level-0 spells/traps add dead-draw risk (Inferred)
D3 Combo Conversion & Ceiling 42 No parseable boards; ceiling read from text (Ame no Murakumo, Extra Deck bosses) with no recorded board power (Inferred)
D4 Combo Floor & Median Output 30 combos_evidence has 0 scored boards, so median output cannot be measured and is held low (Provisional)
D5 Interruption Resilience & Route Redundancy 50 Seven hand traps plus Maxx C and Ash Blossom give 2-3 independent disruption answers, but no alternative route is recorded (Inferred)
D6 Resource Economy, Recovery & Grind 55 19 searcher-text cards and GY recursion (Mitsurugi Ritual, Lacrima) rebuild the starter after one disruption (Inferred)
D7 End-Board & Interaction Quality 55 8 negation-text and 10 removal-text cards give layered interaction; Forbidden copies would be removed in a legal build (Inferred)
D8 Going-Second & Board-Breaking Power 50 Hand-trap density (71% of going-second hands hold one) and Mitsurugi Great Purification challenge a board, but no going-second board data exists (Inferred)
D9 Offensive Pressure & Closing Power 60 Ame no Murakumo 3200 ATK and Chaos Angel 3500 ATK give closing power on a field that is already set up (Verified stat, Inferred use)
D10 Main Deck Efficiency & Flexibility 35 Only 26 distinct main-deck cards with 0% exact-archetype purity across Mitsurugi, Fiendsmith, Bystial and generic cards; three cards are illegal (Verified)
D11 Extra Deck Efficiency & Coverage 35 Extra Deck of 15 spans Link, Xyz, Synchro and Fusion with no single dependable engine, and two of its boss cards are Forbidden (Verified/Inferred)
D12 Side Deck Adaptability 10 Side deck count is 0 (Verified), so no post-side plan exists for best-of-3 play
D13 Matchup Coverage & Format Fit 40 No tournament link and no dated metagame sample; format fit is unknown (Provisional)
D14 Pilotability & Error Tolerance 35 Ritual tributes, Reptile Level math and multi-engine sequencing require many decisions per turn (Inferred)

How the score was computed

Strategy profile: Midrange. Structural ≈ 44, Going First ≈ 40, Going Second ≈ 46, Meta = provisional, Tournament Reliability ≈ 35. Modifiers: banlist exposure (Forbidden cards in-format) (-12). Final formula: Structural 44.19 (Midrange weights). Formula without meta: 0.80*44.19 + 0.20*35 = 42.35. Banlist exposure modifier -12 gives 30. Illegal cap (three Forbidden copies over limit) gives 20, labelled theoretical/structural-only.

Probability & combo summary

  • Opening a starter: P(≥1) ≈ 0.34 · 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 (19 text cards) makes the starter recoverable after one disruption
  • Layered interaction: 7 hand traps, Maxx C, Ash Blossom, and negation/removal text
  • High closing ceiling from Ame no Murakumo (3200 ATK) and Extra Deck bosses

Weaknesses

  • Illegal list: three Forbidden cards over the copy limit
  • No side deck, so no best-of-3 adjustment
  • Scattered sub-archetypes (0% exact-name purity) and missing archetype core (14.3% of usage-stat core present)

Critical choke points

  • Mitsurugi Ritual (3 copies): about 34% chance in a 5-card opening, and it gates the ritual boss line
  • Ritual tribute math for Reptile monsters, where a missed Level total stalls the whole turn
Priority Remove Add Reason
1 Ame no Habakiri no Mitsurugi (x3), Charmer Quartet in Bloom (x1), D/D/D Wave High King Caesar (x1) Legal Reptile/Mitsurugi ritual monsters or Ritual Spells, or legal Extra Deck bosses, to reach a legal list These cards are Forbidden with 0 legal copies, so the deck is illegal as built and the score stays capped until they are removed
2 None (main deck is 40 cards, within the 40-60 range) A side deck of up to 15 cards Side count is 0; a best-of-3 deck needs a post-side plan against the format's common interaction
3 Off-archetype fillers that do not feed the Mitsurugi or Bystial lines Cards that search or summon the boss monsters directly Reduces the 26 distinct main-deck cards with 0% exact-archetype purity and raises the consistency of the ritual line

Evidence & confidence

  • Verified: Legality: 3 Forbidden cards over the copy limit (0 legal copies each); Main 40 and Extra 15 counts within the OCG size rules; side count 0; Usage stats: archetype core present in 3 of 21 core cards (14.3%); Card text and copy counts as listed in the evidence pack
  • Inferred: Starter access 0.34 in a 5-card hand (hypergeometric); Brick and interaction estimates from text roles and copy histogram; Ceiling and interaction ratings from text, not from recorded boards
  • Provisional: Meta Power and format fit (no dated metagame sample)
  • Data gaps: No combos supplied: combo floor, median and ceiling are text-only inference No tournament link: archetype meta-share and pilot record are absent No win-rate telemetry exists: going-first, going-second, matchup and brick rates are Inferred No side deck supplied: post-side plan cannot be scored Meta Power is Provisional unless a dated metagame sample is supplied

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