Evilswarm Deck #42291 — Yu-Gi-Oh! Master Duel

Deck — Deck Power Evaluation

Final Contextual Deck Power: 30/100 (±10 · Confidence: Low)

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

Legality

Main 41 / Extra 15 / Side 0 — status under the rules at evaluation time: Illegal. 4 violation(s).

Identity & game plan

• Win condition: Level 4 Evilswarm Xyz boards (Ophion, Bahamut, Exciton Knight, Nightmare) plus off-archetype Utopia and Knightmare finishers; Link Summon finishers (Knightmare Phoenix, Knightmare Unicorn, Steelswarm Origin, I:P Masquerena)
• Turn 1 (going first): Normal Summon Heliotrope or Castor to reach Level 4 Lswarm material, then Xyz Summon Ophion or Nightmare while holding hand traps (Inferred from card text)
• Turn 2 (going second): Hand traps (Ash Blossom, Infinite Impermanence, Maxx C, Solemn Judgment, Nibiru) to break the opponent's first summon, then Mandragora or Kerykeion recursion to rebuild (Inferred)
• Recovery: Kerykeion recursion from the GY, Infestation Pandemic and Ophion searches, Monster Reborn (Inferred)
• After siding: None. The deck runs 0 side cards, so there is no post-side plan.

Why it scores here

The deck is scored as a system, not as an average of its cards. Its three-copy Lswarm starters give about a 33 percent chance of at least one starter in a going-first opening hand, and its ten hand traps give about an 84 percent chance of at least one going second, so it can usually interact early. Its Level 4 Xyz finishers (Ophion, Bahamut, Nightmare) and high-ATK closers (AA-ZEUS, Nibiru, S39) give it real closing power once a board is established. Its weaknesses are structural: the list runs 56 off-archetype copies (exact-name purity 0 percent), has no side deck, and has four legality violations (two Forbidden cards and two over-limit Limited cards). Because the deck is Illegal, it cannot receive a normal final score, so the 30 is a capped, theoretical structural-only figure. Popularity and archetype usage did not earn points, and no card scores were averaged.

Dimension scores

How the score was computed

Strategy profile: Midrange. Structural ≈ 56, Going First ≈ 55, Going Second ≈ 58, Meta = provisional, Tournament Reliability ≈ 48. Modifiers: banlist exposure (-12); illegal-deck cap (-12). Final formula: Uncapped: 0.80*56 + 0.20*48 = 54.4; banlist modifier -12 gives 42.4; illegal-deck cap (rubric Step 2) gives 30. Theoretical, structural-only; Meta provisional.

Probability & combo summary

• Opening a starter: P(≥1) ≈ — · 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

• Ten hand traps and broad negation/removal text give early interaction
• Three-copy Lswarm starters and Xyz finishers give a plausible going-first plan
• High-ATK Xyz and Link closers give real closing power

Weaknesses

• Four legality violations (two Forbidden, two over-limit Limited) make the list unplayable as built
• No side deck, so no post-side adaptation
• 56 off-archetype copies dilute engine coherence
• Conflicting or dead cards such as Torrential Tribute and Pot of Prosperity

Critical choke points

• Legality fix is required before any normal score can apply
• Lswarm Level 4 material access depends on Heliotrope and Castor normal summons

Recommended changes

Evidence & confidence

• Verified: Main 41, Extra 15, Side 0 meet master-duel size rules; Four copy-limit or banlist violations listed in legality; Extra breakdown 11 Xyz and 4 Link; Hand-trap probabilities 0.3302 and 0.8363 match hypergeometric recomputation
• Observed: Usage-stat core list present but no core card is in this deck (see data gaps)
• Inferred: Starter and hand-trap consistency from hypergeometric draw odds; Interaction and resilience from card text role hints; Strategy classification from card mix
• Provisional: Meta Power (null, no dated metagame sample); Matchup and format fit (no tournament link)
• Data gaps: No combos supplied: floor, median and ceiling are text-only inference No tournament link: meta-share and per-pilot record absent No win-rate telemetry exists in YGOVN for this deck Usage statistics list core cards (Lyrilusc, Dragonoid Generator, Jar of Greed and others) that do not belong to Evilswarm and are absent here, so the usage data appears mismatched and was discounted Evilswarm Heliotrope description_excerpt is reversed text, so its card read is unreliable Deck title is null Side deck is empty