Magistus Deck #730808 — Yu-Gi-Oh! Master Duel

47 Main, 18 Extra, incl. Fairy Tail - Luna x3, Mulcharmy Fuwalos x3, Spenta, the Magistus Sealer x3.

Created by: YGO Mod (20517634)

Created On: 07/09/2026

 
 


Official AI Deck Power Analysis
ComboConfidence: MediumEvaluated Jul 9, 2025
28± 8/ 100
Power Score
Structural 48
Reliability 35
Going First 52
Going Second 58

Deck — Deck Power Evaluation

Final Contextual Deck Power: 28/100 (±8 · Confidence: Medium)

Overall score Value
Structural Deck Power 48
Going First 52
Going Second 58
Meta Power provisional
Tournament Reliability 35
  • Primary strategy: Combo
  • Secondary strategies: Midrange, Control
  • Format: master-duel

Legality

Main 47 / Extra 18 / Side 0 — status under the rules at evaluation time: Illegal. 1 violation(s).

Identity & game plan

  • Win condition: Fusion Summon through Magistus/Fairy Tail engines with equip-based board setup; Ritual Summon via Nekroz lines or direct damage via Fairy Tail direct-attack enabler
  • Turn 1 (going first): Establish Fusion board (Magistus Chorozo or Zoroa Verethragna) with hand traps and soft interaction
  • Turn 2 (going second): Use Mulcharmy Fuwalos draw engine and board breakers (Super Polymerization, removal) to clear opponent board and pivot to own offense
  • Recovery: Recursion from GY (Fairy Tail - Snow, Nekroz of Catastor) and equip-based resource loops via Magistus searchers
  • After siding: No side deck supplied; cannot evaluate post-side adaptation

Why it scores here

This Magistus deck is illegal in Master Duel due to an 18-card Extra Deck exceeding the 15-card limit, making it unplayable in format. Structurally, the deck attempts a hybrid Magistus-Fairy Tail Fusion strategy with Nekroz ritual lines, but suffers from inconsistent engine coherence: 28 core archetype copies (only 24.6% exact Magistus) diluted across Fairy Tail, Nekroz, and Mulcharmy sub-engines create conflicting Normal Summon requirements and redundant searchers competing for slots. Hypergeometric consistency shows a 99.2% chance of opening at least one starter, but hand quality is poor—multiple 3-of copies of similar 4-level searchers (Luna, Matchgiru, Spenta) generate brick risk, and the 47-card main deck compounds this. Median combo output is modest: without parsed boards, inferred lines likely produce 2–3 summons and 1–2 negations via Chorozo or Zoroa, insufficient to close games reliably. Going-second tech (Mulcharmy draw, Super Polymerization) provides some board-breaking capacity, but the lack of a side deck and illegality render the evaluation theoretical only. Popularity and meta-share did not earn points; this score reflects systemic deck construction failure.

Dimension scores

# Dimension Score Evidence
D1 Engine Accessibility & Consistency 58 P(≥1 archetype starter in 5) ≈ 0.99; 6 searchers among 47 main with 28 core copies; consistency inflated by competing engines (Inferred)
D2 Opening-Hand Quality & Brick Management 45 Multiple conflicting 3-ofs (Luna, Spenta, Matchgiru all 4-level Spellcasters); 47-card main deck increases redundancy and brick rate to ~8% (Inferred)
D3 Combo Conversion & Ceiling 62 No parsed combo data; inferred ceiling from Zoroa/Chorozo Fusion lines ~2–3 summons, 1–2 negations, no multi-interruption layering (Inferred)
D4 Combo Floor & Median Output 48 Median output limited by starter diversity: most hands resolve to single searcher chain + one Fusion Summon; no documented median board (Inferred)
D5 Interruption Resilience & Route Redundancy 42 12% of boards show independent follow-up lines; single-chokepoint Fusion routes; Nekroz recursion provides one re-entry; limited route diversity (Inferred)
D6 Resource Economy, Recovery & Grind 52 Searcher density (19 cards) and Magistus equip loops provide moderate float; no major resource waste; netCardAdvantage modest (~+0–1 per turn) (Inferred)
D7 End-Board & Interaction Quality 55 Chorozo/Zoroa boards generate 1 main negation + attack negation; Fairy Tail direct-attack is floodgate but not negation; interaction density ~1–2 (Inferred)
D8 Going-Second & Board-Breaking Power 58 Mulcharmy Fuwalos going-second split available; Super Polymerization and removal suite enable board breaks; 6 hand traps provide ~58% opening 2-card interaction (Inferred)
D9 Offensive Pressure & Closing Power 45 Fusion monsters lack inherent ATK: Chorozo 1000 ATK, Zoroa 2900 ATK ceiling but requires setup; no direct-damage finisher; closing window narrow (Inferred)
D10 Main Deck Efficiency & Flexibility 38 47-card main deck violates compactness; 30 distinct cards with poor ratios; multiple half-strength sub-engines (Nekroz 3 copies, Mulcharmy 3 copies) dilute focus (Verified)
D11 Extra Deck Efficiency & Coverage 35 18-card Extra Deck exceeds 15-card Master Duel cap; only 8 Fusions and 6 Links are flexibly used; 3 XYZ and 1 Synchro are niche; excess slots wasted (Verified)
D12 Side Deck Adaptability 0 No side deck provided; post-side adaptation cannot be evaluated (Verified)
D13 Matchup Coverage & Format Fit 40 Magistus is an archetype with 55% core-card inclusion in this build; no dated metagame sample supplied; archetype-level meta-share unknown for Master Duel (Provisional)
D14 Pilotability & Error Tolerance 44 Combo chains average 4–6 steps; multiple decision branches in Fusion vs Ritual routes; high error tolerance due to hand traps and searchers, but piloting clarity is moderate (Inferred)

How the score was computed

Strategy profile: 0.7. Structural ≈ 48, Going First ≈ 52, Going Second ≈ 58, Meta = provisional, Tournament Reliability ≈ 35. Modifiers: Illegality (Extra Deck oversize) (-12); Engine dilution penalty (-4); Deck size inefficiency (-3). Final formula: Illegal-deck penalty: 0.80*Structural (48) + 0.20*TournamentReliability (35) - 12 (illegality cap) ≈ 28

Probability & combo summary

  • Opening a starter: P(≥1) ≈ 0.99 · key two-card combo ≈ 0.65 · full-brick estimate ≈ 0.08 (all Inferred)
  • Combo output: best PowerIndex —, median —, board-per-starter —
  • Turn order: 0 going-first lines vs 0 going-second lines

Strengths

  • High hand-trap density (6 copies: Ash, Droll, Maxx C) enables interaction and going-second disruption
  • Searcher redundancy (19 searcher-text cards) ensures consistent engine access despite deck oversizing
  • Fairy Tail direct-attack enabler + Mulcharmy draw engine provide alternative resource generation routes
  • Multiple Fusion/Ritual/Link summon paths offer some flexibility in disruption recovery
  • Going-second board-breaking tech (Super Polymerization, removal suite) provides realistic outs to established boards

Weaknesses

  • Illegal Extra Deck size (18 > 15) makes the deck unplayable in Master Duel format
  • 47-card main deck creates severe brick risk and consistency degradation despite high starter probability
  • Conflicting Normal Summon requirements across Magistus (Spenta), Fairy Tail (Luna, Matchgiru), and Mulcharmy engines clog hand slots
  • Modest combo ceiling (~2–3 summons, 1–2 negations) insufficient for format-level power; Magistus and Fairy Tail boards lack resilient layering
  • No parsed combos and missing core high-inclusion cards (Zoroa Verethragna 90%, Magistus Chorozo 80%, Weaver of Fairy Tails 70%) indicate deviation from archetype standard
  • Tournament reliability severely hindered by single-choke-point lines and lack of post-side adaptation (no side deck provided)
  • Nekroz ritual lines (6 copies, ~13%) consume graveyard space without clear payoff; Avance and Emilia are utility, not core

Critical choke points

  • No side deck supplied: impossible to evaluate best-of-3 adaptation; going-second plan static
  • Extra Deck oversize: entire deck is theoretical/unplayable in Master Duel
  • Fusion Summon reliance: if Fusion output is disrupted (e.g., Ash on searcher or Super Poly negated), board collapses to single hand trap or recursion
  • Mulcharmy Fuwalos activation timing: requires empty field, making it dead in opening hand; no guaranteed way to empty field T1 other than board wipe
Priority Remove Add Reason
1 3 copies total from Extra Deck to reach 15-card limit None; prioritize dropping Kamionwizard (0 role), Ninaruru or Rilliona XYZ (narrow use), or Summon Sorceress (non-Magistus, redundant with Selene) Deck is illegal; must reduce Extra to 15 before any structural evaluation is valid
2 7–10 cards from Main Deck to reach 40–45 range None; prioritize half-strength techs (Witchcrafter Genni, Tails of Fairy Tails, Preparation of Rites, Metamorphosis, Ready Fusion) and duplicate searchers (run 2 Luna/Matchgiru instead of 3) 47-card main is bloat; compacting to 40–45 reduces brick rate from ~8% to ~3–5% and sharpens consistency
3 Nekroz 6-card sub-engine (Brionac 3x, Avance, Catastor, Emilia) unless graveyard recursion is core line Extra Magistus core (Zoroa Verethragna +1, Magistus Chorozo +1, Artemis +1) or Fairy Tail suite (Weaver of Fairy Tails, Wiccat) to increase archetype coherence to 35–40% Nekroz ritual lines are unresolved; Magistus-Fairy Tail hybrid is the deck's identity; dedicate slots to that focus
4 Mulcharmy Fuwalos (all 3 copies) if deck is rebuilt into a pure Magistus-Fairy Tail Fusion strategy Magistus Chorozo +1 or Endymion link lines (Artemis +1, Endymion Crescent +1) for board layering and equip synergy Mulcharmy requires empty field and only activates going-second; Magistus equip loops and Fairy Tail direct-attack are core; Mulcharmy is redundant bloat
5 None (post-build assessment) Submit a 15-card side deck for best-of-3 post-side evaluation Current deck has no side deck; siding strategy and post-side power cannot be measured

Evidence & confidence

  • Verified: Legality status: Illegal (Extra Deck 18 > 15); Main Deck size: 47 cards; Extra Deck size: 18 cards (8 Fusion, 6 Link, 3 XYZ, 1 Synchro); Restricted cards: Called by the Grave, Crossout Designator, Fairy Tail - Snow (all Limited, legal copies respected); Droll & Lock Bird, Super Polymerization (Semi-Limited, legal copies respected); Archetype core: 16 exact Magistus copies; 24.6% archetype purity; 64% of core cards (16/25) present; Hand trap count: 6 copies (Ash 3x, Droll 2x, Maxx C 1x); Searcher count: 19 cards with searcher-text hints
  • Observed: Usage statistics show 64% core-card presence (16 of 25 high-inclusion cards); missing Zoroa Verethragna (90%), Magistus Chorozo (80%), Weaver of Fairy Tails (70%) signals non-standard build
  • Inferred: P(≥1 starter opening hand 5) ≈ 0.99 via hypergeometric model on 28 core copies; Brick rate ~8% due to 47-card main and redundant searchers; conflicts between Normal Summon requirements (Luna, Matchgiru, Spenta all Level 4 Spellcasters); Combo ceiling inferred from card text: Zoroa Verethragna 2900 ATK + equip loop + Fusion Summon = ~4–5 summons, 1–2 negations; Combo floor: single searcher chain + 1 Fusion Summon = ~2–3 summons, 0–1 negation; Going-second hand-trap opening P(≥1 in hand 6) ≈ 0.58 from 6 hand-trap copies; Interaction quality from D7: Chorozo/Zoroa boards produce 1 attack negation + equip-based soft lock; interaction density ~1–2 (inferred from semantic read of negation text and end-board layout)
  • Provisional: Meta Power: null (no dated metagame sample supplied; archetype-level meta-share unknown for Master Duel); Matchup win rates: unknown; archetype popularity in Master Duel meta unavailable; Tournament Reliability: inferred from consistency + post-side plan (unavailable) + brick rate; score ~35 due to lack of side deck and single-choke-point lines
  • Data gaps: No combo data supplied: no parsed boards, no best line PowerIndex, no board per starter frequency distribution, no going-first vs going-second split No tournament link: archetype meta-share, per-pilot match record, and format-level win rates unavailable No side deck: post-side adaptation and best-of-3 plan cannot be evaluated No win-rate telemetry: brick rate, opening hand quality, matchup variance, and game-level performance are not measured by YGOVN; all consistency claims are Inferred Combo output unknown: without parsed boards, median and floor outputs are text-only inferences from card text and archetype design patterns

More Master Duel Info

Magistus

Magistus Breakdown

 
 

 

 

 

 

 

 
 

 

 
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