The Undying Legion
DARK

The Undying Legion

  • Archetype:
  • Zombie counterpart

  • ATK:
  • 2700

  • DEF:
  • 0

  • View:
  • 525




2 Level 7 monsters Once per turn, you can also Xyz Summon "The Undying Legion" by using 1 Rank 6 Zombie Xyz Monster you control (transfer its materials). During your opponent's Main Phase (Quick Effect): You can detach 2 materials from this card (or just 1 material if all this card's materials are Xyz Monsters), then target 1 Attack Position monster your opponent controls or 1 monster in their GY; attach it to this card. You can only use this effect of "The Undying Legion" once per turn.




 
 
AI Power Analysis
Removal / NegationConfidence: MediumEvaluated Oct 9, 2026
58± 8/ 100
Power Score
Intrinsic 59
Deck 60

The Undying Legion — Power Evaluation

Final Score: 58 ± 8 · Confidence: Medium

  • Intrinsic: 59 · Deck: 60 · Meta: provisional
  • Primary role: Removal / Negation · Secondary: Board breaker

Why it scores here

The Undying Legion's value is its quick effect: during the opponent's Main Phase it detaches 2 materials (or 1 if all materials are Xyz monsters) to take an Attack Position monster or a GY monster from the opponent and attach it as material. That is a flexible steal-style interaction, which is why effect_interaction and the Removal/Negation weighting drive the score. Its 2700 ATK and Level 7 Xyz body earned no points, and it is not scored for being played in 225 decks, since that frequency is treated as accessibility and portability only. Summoning depends on controlling a Rank 6 Zombie Xyz, and the once-per-turn limit on both the summon and the effect caps the score, so the result is mid-range.

Axis scores

Axis Score Evidence
Accessibility 55 Needs a Rank 6 Zombie Xyz on the field for its summon, a conditional route, though 225 recent decks show it is reachable in practice (verified deck stats; route requirement from text, inference).
Combo & Conversion 50 No combo boards were supplied, so conversion is text-only: it turns 2 materials into a monster body and a steal, roughly one extra body with help (inferred).
Resource Economy 55 Costs only detached materials, not cards, and the stolen monster becomes material, giving a card-neutral swing against the opponent's board or GY (inferred from text).
Effect & Interaction 65 A quick, once-per-turn steal of an Attack Position or GY monster in the opponent's Main Phase is strong and hard to pre-empt, but it cannot touch Defense Position monsters (verified from card text).
Material Utility 40 Its own body is an Xyz monster that holds materials rather than providing them, so it is a poor material for other summons, and blanking does not help it (inferred from text).
Resilience & Flexibility 40 A single quick effect in one zone that a negate or a Defense Position swap can end; it has no recursion or multi-turn redundancy (inferred from text).
Deck-Building Efficiency 60 Typically 1 copy (avg 1.19, max 2 across 225 decks), a mild Zombie Rank 6 restriction, and no garnet or brick problem (observed deck stats; restriction from text).

Calculation

Weight profile: 0.7 Removal/Negation + 0.3 Board breaker (blended). Intrinsic ≈ 59, Deck ≈ 60, Meta = provisional. Modifiers: Rank 6 Zombie Xyz restriction (-2). Final formula: 0.40*Intrinsic + 0.60*Deck

Strengths

  • Quick-effect steal of an Attack Position or GY monster in the opponent's Main Phase, which is disruptive and flexible
  • Broad deck evidence: 225 decks, 54 distinct archetypes, about 73% in gameplay type 7
  • Cheap to run at 1 copy, with redundancy from several Zombie-adjacent homes

Weaknesses

  • Summon requires a Rank 6 Zombie Xyz on the field
  • Once per turn for both the summon and the effect
  • Does nothing to Defense Position monsters
  • Its own body is a poor material and does not convert well when negated

Counters / choke points

  • Negation of the quick effect (for example by hand traps that negate in the opponent's Main Phase)
  • Defense Position swaps or monsters the opponent keeps in Defense Position
  • Removal of the Zombie Rank 6 needed for the summon

Best use

Opponent-turn steal and disruption from a Zombie Xyz line. Decks: Eldlich, Tearlaments, Vampires, Kashtira, Zombies. Suggested copies: 1.

Evidence & gaps

  • Verified: Quick effect in the opponent's Main Phase detaches 2 materials (or 1 if all are Xyz) to take an Attack Position or GY monster (card text); 225 recent decks run it, 54 distinct archetypes, avg 1.19 copies (deck evidence); Summon requires a Rank 6 Zombie Xyz and is once per turn (card text)
  • Observed: Usage statistics show 100% inclusion in Shiranui, Call of the Haunted and Zombies homes, and 81% in one Tearlaments home (usage statistics; not used to inflate score)
  • Inferred: Removal/Negation primary role with Board breaker secondary, from the steal effect; Effect_interaction is strong but Defense Position monsters and negation limit it; Accessibility is moderate because the Rank 6 Zombie requirement is conditional
  • Data gaps: no combos supplied: combo conversion and starter/material roles are text-only inference no banlist token: assumed 3 copies (unlimited) no average starter count, so DeckResilience is estimated from archetype spread











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